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{{Short description|Head of state of Japan}}
{{redirect2|Japanese Emperor|Tennō|the butterfly|Sasakia charonda{{!}}''Sasakia charonda''|other uses|Tenno (disambiguation)|a list|List of emperors of Japan}}
{{Use mdy dates|date=January 2016}}
{{Infobox monarchy
| border             = imperial
| royal_title        = Emperor 
| realm              = Japan
| native_name        = {{nobold|{{lang|ja|天皇}}}}
| coatofarms         = [[File:Flag of the Japanese Emperor.svg|Flag of the Japanese Emperor|border|120px]]
| coatofarmscaption  = [[Flag of Japan|Standard of the Emperor of Japan]]
| image              = Emperor Naruhito 201905 (cropped).jpg
| incumbent          = [[Naruhito]]
| incumbentsince     = 1 May 2019
| style              = [[Japanese honorifics#Imperial styles|His Majesty]]{{efn|{{nihongo|陛下|Heika}}}}{{Efn|The emperor does not generally use the style "Imperial Majesty" because in modern Japanese protocol, the preferred title for the emperor is simply "Majesty". This style reflects a cultural understanding of the emperor's unique position as a symbolic figurehead within the country, not necessarily requiring the distinction of "Imperial" to denote his status above foreign monarchs. Instead, the Japanese term "Tennō Heika" (天皇陛下) is used, which roughly translates into English as "His Majesty the Emperor". This style of address is prescribed by law and used by the [[Imperial Household Agency]].<ref>{{Cite web|url=https://www.kunaicho.go.jp/e-kunaicho/hourei-01.html|title=Article 23, Imperial House Law|publisher=Imperial Household Agency|access-date=November 7, 2023}}</ref><ref>{{Cite web|url=https://www.kunaicho.go.jp/e-about/seido/seido06.html#:~:text=Honorific%20Titles%20(Imperial%20House%20Law,%22%20or%20%22Imperial%20Highnesses.%22|title=About the status of the Emperor and Imperial Family Members
|publisher=Imperial Household Agency|access-date=November 7, 2024}}</ref><ref>{{cite web|url=https://www.kunaicho.go.jp/e-about/activity/activity02.html|title=Activities of Their Majesties the Emperor and Empress|work=The Imperial Household Agency|accessdate=10 February 2023}}</ref>}}
| heir_presumptive   = [[Fumihito, Crown Prince of Japan|Fumihito]]
| first_monarch      = [[Emperor Jimmu|Jimmu]] ([[Japanese mythology|mythical]])<br> [[Emperor Tenmu|Tenmu]] (First monarch using title "Emperor")
| date               = [[National Foundation Day (Japan)|February 11, 660 BC]]; {{age|-659|02|11}} years ago ([[Japanese mythology|mythical]]){{efn|This way of counting years is based on the ancient Japanese way, and does not necessarily match the current one. The actual date of the foundation of the Yamato House is not known; the first historical writings did not appear until the 8th century.}}
| residence          = [[Tokyo Imperial Palace]] {{small|(official residence)}}
| website            = {{URL|https://www.kunaicho.go.jp/eindex.html|www.kunaicho.go.jp}}
}}
{{Politics of Japan}}

The '''Emperor of Japan'''{{efn|{{langx|ja|天皇|Tennō}}; {{IPA|ja|tennoꜜː|pron}}; literally "[[Son of Heaven|ruler from heaven]]" or "[[Heavenly Sovereign|heavenly sovereign]]"<ref>{{cite web |title=Tennō |url=https://www.britannica.com/topic/tenno |website=Encyclopaedia Britannica |access-date=12 August 2021}}</ref>}}{{Efn|In English, the use of the term ''Mikado'' ({{lang|ja|帝}}/{{lang|ja|御門}}) for the emperor was once common but is now considered obsolete.<ref name="Asakawa1903" />}} is the [[hereditary monarch]] and [[head of state]] of [[Japan]].<ref>{{Cite book|author=Joanne Foakes|publisher=The Oxford International Law Library|title=The Position of Heads of State and Senior Officials in International Law|chapter=Chapter 2: Head of State|pages=29–109|publication-date=February 2014|url=https://academic.oup.com/book/57221/chapter-abstract/474187836?redirectedFrom=fulltext|access-date=27 September 2024}}</ref><ref>{{Cite report|url=https://www.un.org/dgacm/sites/www.un.org.dgacm/files/Documents_Protocol/hspmfmlist.pdf|author=Protocol and Liaison Services|title=List of Heads of State, Heads of Government, and Ministers for Foreign Affairs|page=25|publisher=United Nations|publication-date=26 September 2024|access-date=27 September 2024}}</ref>  The emperor is defined by the [[Constitution of Japan]] as the symbol of the Japanese state and the unity of the Japanese people, his position deriving from "the will of the people with whom resides sovereign power".<ref>{{Cite web|title=The Constitution of Japan|url=https://japan.kantei.go.jp/constitution_and_government_of_japan/constitution_e.html |access-date=8 July 2021|website=Prime Minister of Japan and His Cabinet}}</ref> The [[Imperial Household Law]] governs the line of [[Succession to the Japanese throne|imperial succession]]. Pursuant to his constitutional role as a national symbol, and in accordance with rulings by the [[Supreme Court of Japan]], the emperor is personally [[sovereign immunity|immune]] from prosecution.<ref>{{cite web|title= 最高裁判所判例集 事件番号 平成1(行ツ)126|website= Supreme Court of Japan |url= https://www.courts.go.jp/app/hanrei_jp/detail2?id=52451 |access-date=August 10, 2020}}</ref> By virtue of his position as the head of the [[Imperial House of Japan|Imperial House]], the emperor is also recognized as the head of the [[Shinto]] religion, which holds him to be the direct descendant of the sun goddess [[Amaterasu]]. According to tradition, the office of emperor was created in the 7th century BC, but the first historically verifiable emperors appear around the 5th or 6th centuries [[Anno Domini|AD]].<ref name=":0" /><ref name=":1">{{Cite book |last=Henshall |first=Kenneth |url=https://books.google.com/books?id=tmYYAgAAQBAJ&pg=PA100 |title=Historical Dictionary of Japan to 1945 |date=2013 |publisher=Scarecrow Press |isbn=978-0-8108-7872-3 |pages=100}}</ref>

The role of the Emperor of Japan has historically alternated between a largely ceremonial symbolic role and that of an actual imperial ruler. Since the establishment of the first [[shogunate]] in 1192, the emperors of Japan have rarely taken on a role as supreme battlefield commander, unlike many [[Monarchies in Europe|Western monarchs]]. Japanese emperors have nearly always been controlled by external political forces, to varying degrees. For example, between 1192 and 1867, the ''[[shōgun]]s'', or their ''[[shikken]]'' regents in [[Kamakura, Kanagawa|Kamakura]] (1203–1333), were the ''de facto'' rulers of Japan, although they were nominally appointed by the emperor. After the [[Meiji Restoration]] in 1868, the emperor was the embodiment of all sovereign power in the realm, as enshrined in the [[Meiji Constitution]] of 1889. Since the enactment of the 1947 constitution, the role of emperor has been relegated to that of a ceremonial head of state without even nominal political powers. For example, the emperor is the head of the [[Orders, decorations, and medals of Japan|Japanese honors system]], conferring orders, decorations, medals, and awards in the name of the state and on behalf of its people in accordance with the advice of the Cabinet.

Since the mid-nineteenth century, the emperor and other members of the imperial family have resided at the [[Tokyo Imperial Palace|Imperial Palace]],{{Efn|initially {{Nihongo||宮城|Kyūjō}}, later {{Nihongo||皇居|Kōkyo}}}} located on the former site of [[Edo Castle]] in the heart of [[Tokyo]], the current capital of Japan. Earlier, emperors resided in [[Kyoto]], the ancient capital, for nearly eleven centuries. [[The Emperor's Birthday]] (currently 23 February) is a national holiday.

[[Naruhito]] is the current emperor of Japan. He [[Enthronement of the Japanese emperor|acceded]] to the [[Chrysanthemum Throne]] upon the [[2019 Japanese imperial transition|abdication]] of his father, [[Emperor Akihito]], on 1 May 2019. He is the only remaining monarch and head of state in the world who holds the title of [[Emperor]].

==Constitutional role==
[[File:20101129gikai1.jpg|thumb|left|[[Emperor Akihito]] and [[Empress Michiko]] seated in the Chamber of the House of Councillors of the National Diet, with members of the Imperial Family, the Cabinet, and Prime Minister [[Naoto Kan]] giving the government's speech in front of the assembled members of parliament (2010).]]

Most [[constitutional monarchies]] formally vest executive power in the reigning monarch in their capacity as the head of state, who in turn is bound by either [[Constitutional convention (political custom)|convention]] or [[statutory law|statute]] to act on the [[Advice (constitutional law)|advice]] of ministers responsible to the duly elected parliament. Some monarchies, such as those in [[Monarchy of Belgium|Belgium]], [[Monarchy of Denmark|Denmark]], [[Monarchy of Spain|Spain]] and [[Monarchy of Thailand|Thailand]], codify this principle by requiring royal acts to be [[countersign (legal)|countersigned]] by a minister in order to take effect, thus passing political responsibility to the minister.<ref>{{Cite web|url=https://constituteproject.org/constitution/Belgium_2014|title=Article 106, Constitution of Belgium|publisher=The Constitute Project|access-date=December 3, 2023}}</ref><ref>{{Cite web|url=https://constituteproject.org/constitution/Denmark_1953|title=Article 14, Constitution of Denmark|publisher=The Constitute Project|access-date=December 3, 2023}}</ref><ref>{{Cite web|url=https://constituteproject.org/constitution/Spain_2011|title=Sections 56 (3) and 64, Constitution of Spain|publisher=The Constitute Project|access-date=December 3, 2023}}</ref><ref>{{Cite web|url=https://constituteproject.org/constitution/Thailand_2017|title=Section 182, Constitution of Thailand|publisher=The Constitute Project|access-date=December 3, 2023}}</ref> By contrast, Japan is one of only two such [[sovereign states]] where the monarch is not even the ''nominal'' chief executive; the other is [[Sweden]]. Rather, [[wikisource:Constitution of Japan#CHAPTER V. THE CABINET|Article 65]] of the [[Constitution of Japan]] explicitly vests executive authority in the [[Cabinet of Japan|Cabinet]], of which the [[Prime Minister of Japan|prime minister]] is the leader.<ref>{{Cite web|url=https://constituteproject.org/constitution/Japan_1946#s185|title=Article 65, Constitution of Japan|publisher=The Constitute Project|access-date=August 15, 2023}}</ref> The emperor is also not the [[commander-in-chief]] of the [[Japan Self-Defense Forces]]. Instead, the Japan Self-Defense Forces Act of 1954 explicitly vests supreme command and control in the prime minister.<ref>{{Cite web|url=https://www.cambridgescholars.com/resources/pdfs/978-1-5275-3351-6-sample.pdf|editor=Robert D. Eldridge and Musashi Katsuhiro|title=The Japan Self-Defense Forces Law: Translation, History, and Analysis|publisher=Cambridge Scholars Publishing|access-date=August 15, 2023}}</ref> Nevertheless, the emperor remains Japan's internationally recognized head of state.<ref>{{Cite web|url=https://www.cia.gov/the-world-factbook/countries/japan/#government|title=Japan - The World Factbook|publisher=U.S. Central Intelligence Agency|access-date=August 15, 2023}}</ref><ref>{{Cite web|url=http://afe.easia.columbia.edu/special/japan_1950_govt.htm|title=The Government of Modern Japan: The Branches and Their Functions|publisher=Asia for Educators|access-date=August 15, 2023}}</ref><ref>{{Cite web|url=https://www.reuters.com/world/uk/uks-king-charles-welcomes-japans-emperor-naruhito-state-visit-begins-2024-06-25/|title=UK's King Charles welcomes Japan's Emperor Naruhito for state visit|author=Sarah Young|editor=Sachin Ravikumar, Alexandra Hudson and Bill Berkrot|
publisher=Reuters|publication-date=25 June 2024|access-date=27 September 2024}}</ref><ref>{{Cite web|url=https://www.royal.uk/Japan|title=Japan State Vist|publisher=The Royal Household|publication-date=25 June 2024|access-date=27 September 2024}}</ref>

The emperor's fundamental role within the machinery of the Japanese constitution is to perform important representational functions as "…the symbol of the State and of the unity of the People, deriving his position from the will of the people with whom resides sovereign power."<ref>{{Cite web|url=https://constituteproject.org/constitution/Japan_1946#s7|title=Article 1, Constitution of Japan|publisher=The Constitute Project|access-date=August 15, 2023}}</ref> He is limited to performing "acts in matters of state" as delineated by the Constitution, without even nominal powers related to [[Government of Japan|government]]. Moreover, said acts are only exercised in accordance with the binding [[Advice (constitutional law)|advice and consent]] of the [[Cabinet of Japan|Cabinet]], which is collectively responsible to the [[National Diet|Diet]] and thence to the electorate.<ref>{{Cite web|url=https://constituteproject.org/constitution/Japan_1946#s11|title=Article 4, Constitution of Japan|publisher=The Constitute Project|access-date=August 15, 2023}}</ref> Nevertheless, the emperor enjoys three rights in the conduct of state business: (a) the right to be consulted before acting on ministerial advice; (b) the right to encourage a given policy or course of administrative action; and (c) the right to warn the Cabinet against the same.<ref>{{Cite journal|url=https://searchworks.stanford.edu/articles/aph__140465043|author=Tsutsui Kiyotada|title= A Turning Point for the System of Emperor as Symbol: Bagehot, Emperor Showa, and Fukuzawa's On the Imperial Family.
|journal=Asia-Pacific Review|publication-date=November 1, 2019|volume=26|issue=2|pages=26–36|doi=10.1080/13439006.2019.1688929 |access-date=October 7, 2024}}</ref> In these respects, the emperor personifies the democratic state, sanctions legitimate authority, ensures the legality of his official acts, and guarantees the execution of the public will.<ref>{{Cite web|url=https://penntoday.upenn.edu/news/japans-modern-monarchy-how-it-works|author=Brandon Baker|title=Japan's modern monarchy: How it works|publisher=Penn Today|publication-date=May 22, 2019|access-date=August 15, 2023}}</ref><ref>{{Cite web|url=https://japan.kantei.go.jp/constitution_and_government_of_japan/fundamental_e.html|title=Fundamental Structure of the Government of Japan|publisher=Prime Minister of Japan and His Cabinet|publication-date=October 25, 2021|access-date=August 15, 2023}}</ref> These functions, when considered altogether, serve two purposes: foremost, to uphold the continuity and stability of Japanese democracy; and second, to foster a shared national identity and cultural heritage that transcends party politics.<ref>{{Cite web|url=https://knowledge.wharton.upenn.edu/podcast/knowledge-at-wharton-podcast/monarchies-stability-royal-baby/|title=How Modern Monarchies Are Evolving|author=Knowledge at Wharton Podcast|publisher=Wharton School of the University of Pennsylvania|publication-date=May 6, 2019|access-date=November 7, 2024}}</ref><ref>{{Cite web|url=https://www.nippon.com/en/in-depth/d00737/|author=Kawanishi Hideya|title=The Emperor as a Symbol: The Meaning of the Unity of the People Has Evolved with Time|date=October 25, 2021 |publisher=Nippon Communications Foundation|access-date=August 15, 2023}}</ref> In order to maintain his [[Nonpartisanism|institutional neutrality]] as Japan's national symbol, he is barred from making political statements.<ref name="BBC 2019-05-01">{{cite web|access-date=2019-05-02|title=Japan's new Emperor Naruhito pledges unity|url=https://www.bbc.com/news/world-asia-48101637|date=1 May 2019|website=[[BBC News]]}}</ref><ref>{{Cite web|url=https://www.cfr.org/in-brief/japanese-emperors-role-foreign-policy|title=The Japanese Emperor’s Role in Foreign Policy|author=Lindsay Maizland|publisher=Council on Foreign Relations|publication-date=April 26, 2019|access-date=November 7, 2024}}</ref>

It is the emperor's preeminent constitutional duty to [[Imperial Investiture|appoint]] the [[Prime Minister of Japan|Prime Minister]] as designated by the Diet and the [[Chief Justice of the Supreme Court of Japan|Chief Justice]] as designated by the Cabinet. However, the emperor does not have the authority to decline the nominations.<ref>{{Cite web|url=https://constituteproject.org/constitution/Japan_1946#s18|title=Article 6, Constitution of Japan|publisher=The Constitute Project|access-date=August 15, 2023}}</ref> The emperor's other responsibilities, laid down in Article 7 of the Constitution, concern the basic functioning of the state.<ref>{{Cite web|url=https://constituteproject.org/constitution/Japan_1946#s20|title=Article 7, Constitution of Japan|publisher=The Constitute Project|access-date=August 15, 2023}}</ref> To this end, the emperor, on behalf of the Japanese people:
#Promulgates [[Constitution of Japan|constitutional amendments]], [[Law of Japan|laws]], [[Primary and secondary legislation|cabinet orders]], and [[treaty|treaties]].
#Convokes sessions of the [[National Diet|Diet]].
#Dissolves the [[House of Representatives (Japan)|House of Representatives]].
#Proclaims [[Elections in Japan|general elections for members of the Diet]].
#Attests to the appointment and dismissal of [[Ministries of Japan|Ministers of State]] and other officials as provided for by law, and of [[Plenipotentiary|full powers]] and [[Letters of credence|credentials]] of [[Ambassadors]] and [[Envoy (title)|Ministers]].
#Attests to general and special [[amnesty]], [[Commutation (law)|commutation of punishment]], [[Pardon#Related concepts|reprieve]], and [[Rights Restoration|restoration of rights]].
#Awards [[Orders, decorations, and medals of Japan|state honors]].
#Attests to [[Ratification#Japan|instruments of ratification]] and other diplomatic documents as provided for by law.
#[[Agrément|Receives]] the credentials of [[Foreign relations of Japan|foreign]] [[Diplomatic rank|diplomats]].
#Performs [[Emperor of Japan#Cultural role|ceremonial functions]].

Regular ceremonies of the emperor with a constitutional basis are the [[Imperial Investiture]]s ''(Shinninshiki)'' in the [[Tokyo Imperial Palace]] and the [[Speech from the Throne]] ceremony in the [[House of Councillors]] in the [[National Diet Building]]. The latter ceremony opens ordinary and extra sessions of the Diet. Ordinary sessions are opened each January and also after new elections to the House of Representatives. Extra sessions usually convene in the autumn and are opened then.<ref>[https://www.youtube.com/watch?v=bVYP66nRSO8 The formal investiture of the Prime Minister in 2010], [https://www.youtube.com/watch?v=gBcygK0uQ7E the opening of the ordinary session of the Diet in January 2012] and [https://www.youtube.com/watch?v=hEkWcXFZz2c the opening of an extra session of the Diet in the autumn of 2011.] The 120th anniversary of the Diet was commemorarated with [https://www.youtube.com/watch?v=fAY-7gl21i0 a special ceremony] in the House of Councillors in November 2010, when also the Empress and the Prince and Princess Akishino were present.</ref>{{Primary source inline|reason=These facts need scholarly interpretation from secondary sources|date=March 2021}}

== Cultural role ==
[[File:Ceremony of the Utakai Hajime around 1950.jpg|thumb|''[[Utakai Hajime]]'' poetry competition, chaired by [[Emperor Shōwa]] and [[Empress Kōjun]] (1950).]]
The ''Tennō'' is regarded as the foremost Shintō priest in terms of religion. This sacred duty dates back to the [[Niiname-sai]] (新嘗祭, "tasting of new rice") imperial harvest festival. In this ritual, the emperor presents newly gathered rice to the gods. The celebration is known as ''Daijōsai'' (大嘗祭, "Great Tasting") and takes place in the first year after the emperor's accession to the throne. The historical text ''[[Nihonshoki]]'', written in the year 720, has the first mention of this ceremony, whose beginnings are believed to date back even further. The event evolved through time to become the Day of Thanksgiving for Labour, a recognized official holiday today.

The office of the emperor is also cultural bearer and steward of tradition and culture. For example, the ''[[Utakai Hajime]]'' is the annual poetry reading competition convened by the emperor. The emperor is supported in this function by the empress and other members of the imperial family, who have honorary patronages of many associations and organisations. They travel extensively throughout the year within the country to uphold these roles.

In sports, the ''[[Emperor's Cup]]'' (天皇賜杯, ''Tennō shihai'') is given to a number of competitions such as football, judo, volleyball, and the top division ''[[yūshō]]'' winner of a sumo tournament.

==History==
Although the emperor has been a symbol of continuity with the past, the degree of power exercised by the emperor has varied considerably throughout Japanese history.

===Origins===
{{See also|List of emperors of Japan}}

According to the traditional account of the [[Nihon Shoki]], Japan was founded by [[Emperor Jimmu]] {{age|-659|2|11}} years ago. However most modern scholars agree to regard Jimmu and the nine first emperors as mythical.<ref>{{Cite book|last=Shillony|first=Ben-Ami|url=https://books.google.com/books?id=FwztKKtQ_rAC&q=nine+first+emperors+of+japan&pg=PA15|title=The Emperors of Modern Japan|date=2008|publisher=BRILL|isbn=978-90-04-16822-0|pages=15|language=en|author-link=Ben-Ami Shillony}}</ref>  [[Emperor Sujin]], the 10th emperor, may have been a real historical figure. The emperors from [[Emperor Ōjin]] are considered as perhaps factual. As one argument, the reign of [[Emperor Kinmei]] ({{circa|509}}–571 AD), the 29th emperor, is the first for whom contemporary historiography is able to assign verifiable dates.<ref name=":1" /><ref name=":0">Hoye, Timothy. (1999). ''Japanese Politics: Fixed and Floating Worlds,'' p. 78; "According to legend, the first Japanese emperor was Jinmu. Along with the next 13 emperors, [[Emperor Jimmu|Jimmu]] is not considered an actual, historical figure. Historically verifiable Emperors of Japan date from the early sixth century with [[Emperor Kinmei|Kinmei]]."</ref>

Archaeological information about the earliest historical rulers of Japan may be contained in the ancient tombs known as ''[[kofun]]'', constructed between the early 3rd century and the early 7th century AD. However, since the [[Meiji period]], the [[Imperial Household Agency]] has refused to open the ''kofun'' to the public or to archaeologists, citing their desire not to disturb the spirits of the past emperors. ''Kofun'' period artefacts were also increasingly crucial in Japan as the Meiji government used them to reinforce their authority.<ref>{{Cite thesis|last=Edgington-Brown |first=Luke |date=May 2016 |title=The International Origins of Japanese Archaeology: William Gowland and His Kofun Collection at the British Museum |url=https://ueaeprints.uea.ac.uk/id/eprint/67858/ |type=Ph.D. |location=Norwich, UK |publisher=University of East Anglia |oclc=1079148109 |id=ProQuest Dissertations & Theses Global 2164566112 <!-- Also (meaning?): Order No. 13832636 -->}}</ref> In 2016, the Imperial Household Agency reversed its position and decided to allow researchers to enter some of the ''kofun'' with limited time and way.

In the early 7th century, the emperor had begun to be called the {{Nihongo|"[[Son of Heaven]]"|天子|tenshi|or 天子様 ''tenshi-sama''}}.<ref>{{cite book |url=https://books.google.com/books?id=kO0tUpCViA8C&pg=PA300 |title=Rethinking Japan: Social Sciences, Ideology and Thought |publisher=Japan Library |year=2003 |isbn=978-0-904404-79-1 |editor-last=Boscaro |editor-first=Adriana |volume=II |page=300 |editor2-last=Gatti |editor2-first=Franco |editor3-last=Raveri |editor3-first=Massimo}}</ref> The title of emperor was borrowed from China, being derived from Chinese characters, and was retroactively applied to the legendary Japanese rulers who reigned before the 7th–8th centuries AD.<ref name="Holcombe2001">{{cite book |last=Holcombe |first=Charles |url=https://books.google.com/books?id=XT5pvPZ4vroC&pg=PA198 |title=The Genesis of East Asia: 221 B.C. – A.D. 907 |date=January 2001 |publisher=University of Hawaii Press |isbn=978-0-8248-2465-5 |pages=198–}}</ref>

=== Disputes and instability (10th century) ===
{{Unreferenced section|date=March 2021}}
[[File:Emperor-Go-Daigo-by-Ogata-Gekko-1904.png|thumb|[[Emperor Go-Daigo]]]]

The growth of the [[samurai]] class from the 10th century gradually weakened the power of the imperial family over the realm, leading to a time of instability. Emperors are known to have come into conflict with the reigning shogun from time to time. Some instances, such as [[Emperor Go-Toba]]'s [[Jōkyū War|1221 rebellion]] against the [[Kamakura shogunate]] and the 1336 [[Kenmu Restoration]] under [[Emperor Go-Daigo]], show the power struggle between the [[Imperial Court in Kyoto]] and the military governments of Japan.

=== Factional control (530s–1867) and ''shōguns'' (1192–1867) ===
{{Main|Shogun}}
There have been seven non-imperial [[Japanese clans|families]] who have controlled Japanese emperors: the [[Soga clan|Soga]] (530s–645), the [[Fujiwara clan|Fujiwara]] (850s–1070), the [[Taira clan|Taira]] (1159–1180s), the [[Minamoto clan|Minamoto]] (1192–1199), the [[Hōjō clan|Hōjō]] (1199–1333), the [[Ashikaga shogunate|Ashikaga]] (1336–1565), and the [[Tokugawa shogunate|Tokugawa]] (1603–1867). However, every shogun from the Minamoto, Ashikaga, and Tokugawa families had to be officially recognized by the emperors, who were still the source of sovereignty, although they could not exercise their powers independently from the shogunate.

During the major part of 1192 to 1867, political sovereignty of the state was exercised by the ''shōguns'' or their ''[[shikken]]'' regents (1203–1333), whose authority was conferred by Imperial warrant. When [[Portuguese discoveries|Portuguese explorers]] first came into contact with the Japanese (see ''[[Nanban period]]''), they described Japanese conditions in analogy, likening the emperor with great symbolic authority, but little political power, to the [[pope]], and the ''shōgun'' to secular European rulers (e.g., the [[Holy Roman emperor]]). In keeping with the analogy, they even used the term "emperor" in reference to the ''shōguns'' and their regents, e.g. in the case of [[Toyotomi Hideyoshi]], whom missionaries called "Emperor Taico-sama" (from [[Sesshō and Kampaku|Taikō]] and the honorific ''[[Japanese titles|sama]]''). A Dutch embassy report used similar terminology in 1691.<ref name="jpciv">{{cite book |year=1978 |title=A Brief History of Japanese Civilization |page=147 |author1=Conrad Schirokauer |author2=David Lurie |author3=Suzanne Gay |publisher=Cengage Learning |url=https://books.google.com/books?id=UaYJAAAAQBAJ&pg=PA147 |isbn=978-0495913252}}</ref> [[Empress Go-Sakuramachi]] was the last ruling empress of Japan and reigned from 1762 to 1771.<ref>Titsingh, pp. 411–412.</ref> During the [[Sakoku]] period of 1603 to 1868, there was very limited trade between Japan and foreigners. The [[Japan–Netherlands relations|Dutch]] were the only westerners who had limited access to Japan.<ref name="jpciv"/>

=== Kenmu Restoration (1333–1336) ===
{{Main|Kenmu Restoration}}
Emperor [[Emperor Go-Daigo|Go-Daigo]] succeeded in 1333 to get back the direct authority directly to the emperor after overthrowing the [[Kamakura shogunate]], with the help of [[Ashikaga Takauji]], a defected Kamakura general. The short three-year period during which the power was directly in the hand of the emperor is called the [[Kenmu Restoration]]. The direct ruling of the emperor proved however inefficient and ultimately failed, with Takauji grabbing political power for himself.

===Meiji Restoration (1868)===
{{Main|Meiji Restoration}}
[[File:武州六郷船渡図_Bushu_Rokugo_funawatashi_no_zu.jpg|thumb|The first arrival of Emperor Meiji to [[Edo (Tokyo)|Edo]] (1868)]]

In July 1853, [[Matthew C. Perry|Commodore Perry]]'s [[Black Ships]] of the [[United States Navy|US Navy]] made their first visit to [[Edo Bay]]. Japan lacked the military and industrial power to prevent it.<ref name="bs">{{Cite web |last=Dower |first=John |author-link=John W. Dower |title=Black Ships and the Samurai: Commodore Perry and the Opening of Japan (1853–1854) |url=https://visualizingcultures.mit.edu/black_ships_and_samurai/bss_essay01.html |year=2010 |publisher=Massachusetts Institute of Technology |access-date=15 June 2019}}</ref><ref name="takekoshi">Takekoshi, [https://books.google.com/books?id=mvfMKV1b1fwC&pg=PA285 pp. 285–86]</ref> Unequal treaties coerced and took advantage of Japan.<ref name="bs"/><ref name="takekoshi"/> Consequently, Japan was forcibly opened to foreign trade and the shogunate proved incapable of hindering the "barbarian" interlopers; [[Emperor Kōmei]] thus began to assert himself politically. By the early 1860s, the relationship between the [[Imperial Court in Kyoto|Imperial Court]] and the shogunate was changing radically. Disaffected [[Han system|domains]] and ''[[rōnin]]'' began to rally to the call of ''[[sonnō jōi]]'' ("revere the emperor, expel the barbarians"). The domains of [[Satsuma Domain|Satsuma]] and [[Chōshū Domain|Chōshū]], historic enemies of the Tokugawa, used this turmoil to unite their forces and won an important military victory outside of [[Kyoto]] against Tokugawa forces.{{Citation needed|date=October 2021}}

On 9 November 1867, the Shogun [[Tokugawa Yoshinobu]] formally stepped down to restore [[Emperor Meiji]] to nominal full power.<ref>{{cite journal |title=Political Succession in The Tokugawa Bakufu: Abe Masahiro's Rise to Power, 1843–1845 |first=Conrad |last=Totman |journal=Harvard Journal of Asiatic Studies |volume=26 |year=1966 |pages=102–124 |doi=10.2307/2718461 |jstor=2718461}}</ref> He issued the imperial decree of constitutionalism <ref>{{Cite web|title=御誓文ノ趣旨ニ基ク立憲政體樹立ニ關スル詔書（明治八年四月十四日）：文部科学省 |url=https://www.mext.go.jp/b_menu/hakusho/html/others/detail/1317934.htm |website=www.mext.go.jp |access-date=2024-03-19}}</ref> on 14 April 1875. The [[Meiji Constitution]] was adopted on 11 February 1889.<ref name="britannica1">{{Cite news|url=https://www.britannica.com/topic/Meiji-Constitution|title=Meiji Constitution {{!}} 1889, Japan|work=Encyclopedia Britannica|access-date=2017-08-21|language=en}}</ref> The emperor of Japan became an active ruler with considerable political power over foreign policy and diplomacy which was shared with an elected [[National Diet|Imperial Diet]].<ref name="britannica1"/> The Japanese subjects gained many rights and duties.

The constitution described the emperor (in Article 4) as: "the head of the Empire, combining in Himself the rights of sovereignty", and he "exercises them, according to the provisions of the present Constitution". His rights included to sanction and promulgate laws, to execute them and to exercise "supreme command of the Army and the Navy". The liaison conference created in 1893 also made the emperor the leader of the [[Imperial General Headquarters]]. On Meiji's death in 1912 and the accession of his son [[Emperor Taishō|Taishō]], who suffered from ill-health and various disabilities, many of these powers were assumed by the Imperial Diet in an era known as the [[Taishō Democracy]].<ref>{{cite book |editor-last1=Ishida |editor-first1=Takeshi |editor-last2=Kraus |editor-first2=Ellis S |date=1989 |title=Democracy in Japan |url=https://books.google.com/books?id=J8LFNt_PHqMC&pg=PA7 |publisher=University of Pittsburgh Press |page=7 |isbn=978-0822954149 }}</ref>

=== World War II (1937–1945)===
[[File:Emperor Showa.jpg|thumb|Emperor Shōwa reigned from 1926 to 1989]]
[[Hirohito|Emperor Shōwa]] (Hirohito) was in power during the [[Pacific War]]; he controlled both the sovereign of the state and the imperial forces.<ref name=":02">{{Cite book|author=Kawamura, Noriko|title=Emperor Hirohito and the Pacific War|date=2016|isbn=978-0-295-80631-0|location=Seattle|oclc=922925863}}{{page needed|date=February 2023}}</ref> The role of the emperor as head of the [[State Shinto]] religion was exploited during the war, creating an [[Imperial cult]] that led to [[kamikaze]] bombers and other manifestations of [[fanaticism]]. This in turn led to the requirement in the [[Potsdam Declaration]] for the elimination "for all time of the authority and influence of those who have deceived and misled the people of Japan into embarking on world conquest".<ref>{{Cite journal|title=The U.S. Army, Unconditional Surrender, and the Potsdam Declaration|url=http://dx.doi.org/10.1163/2468-1733_shafr_sim130130102|access-date=2020-12-09|journal=The SHAFR Guide Online|date=January 1976|doi=10.1163/2468-1733_shafr_sim130130102|last1=Villa|first1=Brian Loring}}</ref>

In State Shinto, the emperor was believed to be an {{Nihongo||現人神|[[arahitogami]]}} (manifest [[kami]] or [[incarnation]] of a [[deity]]).<ref>{{Lang|ja-latn|[[Nihon Shoki]]}}, Chapter 7</ref> Following Japan's surrender, the [[Allies of World War II|Allies]] issued the [[Shinto Directive]] separating church and state within Japan. In 1946, Emperor Shōwa was forced to proclaim the [[Humanity Declaration]], but the declaration excludes the word {{Nihongo||現人神|arahitogami}}, including the unusual word {{Nihongo||現御神|akitsumikami|living god}} instead. As such, some experts doubt whether his divinity was renounced.<ref name="herbert"/> [[Jean Herbert]] said it would be inadmissible to deny his divine origin.<ref name="herbert">{{cite book |last=Herbert |first=Jean |title=Aux sources du Japon: Le Shinto |publisher=Albin Michel |place=Parigi |date=1964|page= |isbn=}}{{ISBN?}}{{page needed|date=June 2021}}</ref>

Emperor Shōwa was excluded from the postwar [[International Military Tribunal for the Far East|Tokyo War Crimes Tribunal]]. Scholars dispute the power he had and the role he played during WWII.<ref name=":02" /> Emperor Shōwa's reign from 1926 until his death in 1989 makes him the longest-lived and longest-reigning historical Japanese emperor, and one of the [[List of longest-reigning monarchs|longest-reigning monarchs in the world]].

=== Contemporary (1978–present) ===
The Emperors of Japan have not visited [[Yasukuni Shrine]] since 1978.<ref name="reuters.com">{{cite news | url=https://www.reuters.com/world/asia-pacific/why-yasukuni-shrine-is-controversial-symbol-japans-war-legacy-2021-08-13/ | title=Explainer: Why Yasukuni shrine is a controversial symbol of Japan's war legacy | newspaper=Reuters | date=August 14, 2021 }}</ref> Hirohito maintained an official boycott of Yasukuni Shrine after it was revealed to him that Class-A war criminals had secretly been enshrined. The boycott was continued by his son and grandson, [[Akihito]] and [[Naruhito]].<ref name="reuters.com"/>

By 1979, Emperor Shōwa was the only monarch in the world with the [[Imperial, royal and noble ranks|monarchical title]] "[[emperor]]." Emperor Shōwa was the longest-reigning historical monarch in Japan's history and the world's longest reigning monarch until surpassed by King [[Bhumibol Adulyadej]] of Thailand in July 2008.<ref name="bhumibol">{{cite news |date=21 May 1989 |title=King Bhumibol's reign |work=The New York Times |url=https://www.nytimes.com/1989/05/21/magazine/king-bhumibol-s-reign.html |url-status=live |access-date=23 February 2020 |archive-url=https://web.archive.org/web/20191022232305/https://www.nytimes.com/1989/05/21/magazine/king-bhumibol-s-reign.html |archive-date=22 October 2019}}</ref>

According to journalist Makoto Inoue of ''[[The Nikkei]]'', Emperor Emeritus [[Akihito]] wanted to be closer to the people, rather than be treated like a god or robot.<ref name="efe-agencia"/> Inoue believes that during his reign, he transformed the symbolic role of emperor into a human being.<ref name="efe-agencia">{{cite web |date=April 30, 2019 |title=Japanese emperor, a state symbol with scant political power |url=https://www.efe.com/efe/english/life/japanese-emperor-a-state-symbol-with-scant-political-power/50000263-3964383 |archive-url=https://web.archive.org/web/20190501022048/https://www.efe.com/efe/english/life/japanese-emperor-a-state-symbol-with-scant-political-power/50000263-3964383 |archive-date=May 1, 2019}}</ref> In March 2019, the [[Mainichi]] reported 87% thought Akihito fulfilled his role as symbol of the state.<ref name="efe-agencia" />

On 30 April 2019, Emperor [[Akihito]] abdicated due to health issues and [[Heisei era]] ended.<ref name="cnn1">{{cite news |last=Enjoji |first=Kaori |date=1 December 2017 |title=Japan Emperor Akihito to abdicate on April 30, 2019 |url=http://edition.cnn.com/2017/11/30/asia/japan-emperor-akihito-abdication-intl/index.html |work=[[CNN]] |location=Tokyo |access-date=1 December 2017 |archive-date=30 April 2019 |archive-url=https://web.archive.org/web/20190430100018/https://edition.cnn.com/2017/11/30/asia/japan-emperor-akihito-abdication-intl/index.html |url-status=live }}</ref> The previous time abdication occurred was [[Emperor Kōkaku]] in 1817. Akihito's eldest son, [[Naruhito]] ascended on 1 May 2019, referred to as ''[[Reigning Emperor|Kinjō Tennō]]'' and [[Reiwa era]] started.

==== Current constitution ====
In 1947 the post-war {{Nihongo|[[Constitution of Japan]]|日本国憲法|Nihonkoku-Kenpō}} became law when it received the emperor's [[royal assent|assent]] on 3 November 1946.<ref name="edict">{{cite web |website=National Diet Library |title=Text of the Constitution and Other Important Documents |url=http://www.ndl.go.jp/constitution/e/etc/c01.html |access-date=8 June 2015 |archive-url=https://web.archive.org/web/20201106232808/https://www.ndl.go.jp/constitution/e/etc/c01.html |archive-date=November 6, 2020}}</ref> It provides for a [[parliamentary system]] of government and guarantees certain fundamental rights. Under its terms, the emperor of Japan is "the symbol of the State and of the unity of the people" and exercises a purely ceremonial role without the possession of sovereignty.<ref name="oxford1">{{Cite book|last=Oda|first=Hiroshi|url=http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199232185.001.1/acprof-9780199232185|title=Japanese Law|publisher=Oxford University Press|year=2009|isbn=978-0-19-923218-5|chapter=Sources of Law|doi=10.1093/acprof:oso/9780199232185.001.1}}</ref> It was drawn up under the [[Allied occupation of Japan|Allied occupation]] that followed World War II and changed Japan's previous Prussian-style [[Meiji Constitution]] that granted the emperor theoretically unlimited powers.{{sfn|Takemae|2002|p=270}} The [[liberal constitution]] was inspired by several European states.{{sfn|Takemae|2002|p=xxxix}} Currently, it is a rigid document and the oldest unamended constitution.<ref name="anomalous-constitution">{{cite news|title=The Anomalous Life of the Japanese Constitution |url=https://www.nippon.com/en/in-depth/a05602/the-anomalous-life-of-the-japanese-constitution.html |date=15 August 2017 |access-date=11 August 2019 |website=Nippon.com |archive-url=https://web.archive.org/web/20190811213143/https://www.nippon.com/en/in-depth/a05602/the-anomalous-life-of-the-japanese-constitution.html |url-status=live |archive-date=11 August 2019}}</ref>

=== Realm and territories ===
{{multiple image
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Historically, territorial designations are not a requirement for the position of ''Tennō'' (emperor). Rather it is the emperor's symbolic and religious power of authority.<ref name="Roth, 2007:103">Roth, 2007:103.</ref> Since the [[Kamakura shogunate]], the emperor held [[de jure]] ownership of the realm. Throughout most of medieval Japan, the [[shogun]]'s legitimate authority was based on being appointed and receiving the power from the emperor even though the shogun was the ''de facto'' ruler.<ref name="Roth, 2007:103"/><ref>{{cite encyclopedia|url=https://www.britannica.com/EBchecked/topic/541431/shogunate|title=Shogun|encyclopedia=Encyclopædia Britannica|access-date=19 November 2014}}</ref> The emperor was considered a direct descendant of [[Amaterasu]] and of utmost importance in the [[Shinto]] religion and sentimental traditions.<ref name="Roth, 2007:103"/> Thus no shogun tried to usurp the emperor, instead they tried to keep the emperor under control and away from politics.<ref name="Fiévé & Waley, 2003:235">Fiévé & Waley, 2003:235.</ref> However, the emperor still had the power to "control time" via the Japanese [[Nengō]] which names eras on calendars after emperors.<ref name="Fiévé & Waley, 2003:235"/>

During the [[Kofun period]] the first central government of the unified state was [[Yamato Province|Yamato]] in the [[Kinai]] region of central Japan.<ref name="kofun">{{cite book |last=Henshall |first=Kenneth |year=2012 |title=A History of Japan: From Stone Age to Superpower |pages=15–16 |publisher=[[Palgrave Macmillan]] | location=London |url=https://books.google.com/books?id=vD76fF5hqf8C |isbn=978-0-230-34662-8}}</ref> The territory of Japan has changed throughout history. Its largest extent was the [[Empire of Japan]]. In 1938 it was {{convert|1,984,000|km2|sqmi|-5|abbr=on}}.<ref name=Harrison3>{{cite book|last1=Harrison|first1=Mark|title=The Economics of World War II: Six Great Powers in International Comparison|date=2000|publisher=Cambridge University Press|isbn=9780521785037|page=3|url=https://books.google.com/books?id=ZgFu2p5uogwC|access-date=October 2, 2016}}</ref>

The maximum extent including the home islands and the [[Japanese colonial empire]] was {{convert|8510000|km2|sqmi|-5|abbr=on}} in 1942.<ref name="JapaneseEmpire">{{Cite book|last=James|first=David H.|url=https://books.google.com/books?id=Ceklh3YT_38C&pg=PT331|title=The Rise and Fall of the Japanese Empire|date=2010-11-01|publisher=Routledge|isbn=9781136925467|language=en|quote=by 1942, this 'Empire' covered about 3,285,000 square miles|access-date=11 September 2018|archive-url=https://web.archive.org/web/20190706005539/https://books.google.com/books?id=Ceklh3YT_38C&pg=PT331|archive-date=6 July 2019|url-status=live}}</ref> After its defeat in [[World War II]] the empire was dismantled. The contemporary territories include the [[Japanese archipelago]] and these [[List of extreme points of Japan|areas]]. Regardless of territorial changes the emperor remains the formal [[head of state]] of Japan. During most of history, ''de facto'' power was with [[shogun]]s or [[Prime Minister of Japan|prime ministers]]. The emperor was more like a revered embodiment of divine harmony than the head of an actual governing administration. In Japan, it was more effective for ambitious [[daimyo]] (feudal lords) to hold actual power, as such positions were not inherently contradictory to the emperor's position. The shoguns and prime ministers derived their legitimacy from the emperor. The [[Government of Japan|parliamentary government]] continues a similar coexistence with the emperor.{{Citation needed|date=January 2021}}

The first recorded instance of the name ''[[Names of Japan|Nihon]]'' {{nihongo2|日本}} was between 665 and 703 during the [[Asuka period]].<ref>{{cite book |url=https://books.google.com/books?id=krq5CAAAQBAJ&pg=PA140 |title=The Cultural Dimensions of Sino-Japanese Relations: Essays on the Nineteenth and Twentieth Centuries |first= Joshua A. |last=Fogel |date=29 April 2015 |page=140 |publisher=Routledge |isbn=978-1317457671 }}</ref> This was several centuries after the start of the current imperial line.<ref name="nussbaum707">Nussbaum, Louis Frédéric ''et al.'' (2005). "Nihon" in {{Google books|p2QnPijAEmEC|''Japan encyclopedia,'' p. 707.|page=707}}; n.b., Louis-Frédéric is pseudonym of Louis-Frédéric Nussbaum, ''see'' [http://dispatch.opac.ddb.de/DB=4.1/PPN?PPN=128842709 Deutsche Nationalbibliothek Authority File] {{webarchive|url=https://archive.today/20120524174828/http://dispatch.opac.ddb.de/DB=4.1/PPN?PPN=128842709|date=2012-05-24}}.</ref> The various names of Japan do not affect the status of the emperor as head of state.

=== Education ===
The emperors traditionally had an education officer. In recent times, [[Emperor Taishō]] had Count [[Nogi Maresuke]], [[Hirohito|Emperor Shōwa]] had Marshal-Admiral Marquis [[Tōgō Heihachirō]], and Emperor [[Akihito]] had [[Elizabeth Gray Vining]] as well as [[:ja:小泉信三|Shinzō Koizumi]] as their tutors.<ref>{{Cite news|last=Smith|first=Dinitia|date=1999-12-01|title=Elizabeth Vining, Tutor to a Future Emperor, Dies at 97 (Published 1999)|language=en-US|work=The New York Times|url=https://www.nytimes.com/1999/12/01/arts/elizabeth-vining-tutor-to-a-future-emperor-dies-at-97.html|access-date=2020-11-13|issn=0362-4331}}</ref> Members of the Imperial family were obliged to be educated at the [[Gakushūin]] (Peer's School) by the 1926 Act of Education for the Imperial family, which was abolished in 1947.<ref>{{Cite web|title=皇族就学令 大正15年10月21日皇室令第8号|trans-title=Royal school enrollment order (October 21, 1918 Imperial Ordinance No. 8)|url= https://hourei.ndl.go.jp/simple/detail?lawId=0000020481&current=-1|website=National Diet Library|date=2019}}</ref>

==Reference and naming==
The Japanese language has two words equivalent to the English word "emperor": {{Nihongo||天皇|tennō|extra="heavenly sovereign"}}, which refers exclusively to the emperor of Japan, and {{Nihongo||皇帝|kōtei}}, which primarily identifies non-Japanese emperors. ''Sumeramikoto'' ("the imperial person") was also used in [[Old Japanese language|Old Japanese]].

The title given posthumously to an emperor changed after the death of [[Emperor Murakami]] in 967, who was the last to receive the title {{Nihongo|||tennō}}. From the death of [[Emperor En'yū]] in 991 onward, the title {{Nihongo||院|in}} started to be used instead of ''tennō'' as the honorary title attached to the {{Nihongo|posthumous name|諡号|shigō}}.<ref name = "Fujita">{{Cite book|title = 天皇の歴史６ 江戸時代の天皇 |trans-title = History of the Emperors 6: Emperors of the Edo Period|series = Kodansha Academic Library|isbn=978-4-065-11640-1|publisher = Kodansha|date = 2018|last = Fujita |first = Satoru|pages = 288–290 |language=ja}}</ref> The term ''in'' originally referred to both the residence and the honorific title of a {{Nihongo|retired emperor|太上天皇|[[Daijō Tennō]]}}. However, from the [[Heian period]] onward, as it became rare for emperors to pass away before abdicating, the ''in'' title became established as a posthumous title. An exception is [[Emperor Antoku]], who died during his reign in 1187, and was posthumously given a title that included ''tennō''.<ref name = "Fujita" />

During their reign, the term ''tennō'' was only written in documents on limited occasions, such as when it was written as ''tennō'' but read as ''sumeramikoto'' in the {{Nihongo|imperial rescript of accession|即位宣命|sokui senmyō}}. Normally, out of respect, euphemistic expressions like {{Nihongo||禁裏|kinri}}, {{Nihongo||禁中|kinchū}}, or {{Nihongo||主上|shujō}}, which refer to the emperor's palace or supreme status, were used instead.<ref name = "Fujita"/>

However, as the use of the title ''in'', which originally referred to retired emperors, gradually expanded over time to include members of the imperial family, [[shogun]]s, [[daimyo]]s, and even commoners, it came to be seen as inappropriate for deceased emperors. The [[Edo period]] Confucian scholar [[Nakai Chikuzan]] (1730–1804) remarked, "The title ''in'' is used by everyone from feudal lords and nobles to [[samurai]] and commoners, so it lacks the supreme honor of the imperial title and is unworthy" (from ''Sōbō Kigen''). He argued that deceased emperors should be referred to as "Era Name + Tennō."<ref name = "Fujita" />

Amid this trend, when [[Emperor Kōkaku]] died in 1840, [[Emperor Ninkō]] consulted with the court nobles about reviving the title ''tennō'' and obtained permission from the [[Tokugawa shogunate]]. He then selected a posthumous name, and in 1841, bestowed the title and posthumous name {{Nihongo|Emperor Kōkaku|光格天皇|Kōkaku Tennō}}. From this point onward, the title ''tennō'' was once again used for deceased emperors.<ref name = "Fujita" />

Other titles that were recorded to be in use were ''kō'' (皇), ''tei'' (帝), ''ō'' (王), all meaning "prince" or "emperor", and ''tenshi'' (天子), or "child of heaven".<ref>{{cite book |last1= Engelbert Kaempfer |last2= Beatrice M. Bodart-Bailey |title= Kaempfer's Japan: Tokugawa Culture Observed |date=1999 |publisher=University of Hawaii Press |isbn=9780824863227 |page=88}}</ref>

In English, the term ''mikado'' ({{lang|ja|御門}} or {{lang|ja|帝}}), literally meaning "the honorable gate" (i.e. the gate of the imperial palace, which indicates the person who lives in and possesses the palace; compare ''[[Sublime Porte]]'', an old term for the [[State organisation of the Ottoman Empire|Ottoman government]]), was once used (as in ''[[The Mikado]]'', a 19th-century [[operetta]]), but this term is now obsolete.<ref name="Asakawa1903">Kanʼichi Asakawa. ''[https://archive.org/details/bub_gb_K1MuAAAAYAAJ/page/n36 The early institutional life of Japan: a study in the reform of 645 A.D.]''. Tokyo: Shueisha (1903), p. 25. "We purposely avoid, in spite of its wide usage in foreign literature, the misleading term ''Mikado''. If it be not for the natural curiosity of the races, which always seeks something novel and loves to call foreign things by foreign names, it is hard to understand why this obsolete and ambiguous word should so sedulously be retained. It originally meant not only the Sovereign, but also his house, the court, and even the State, and its use in historical writings causes many difficulties which it is unnecessary to discuss here in detail. The native Japanese employ the term neither in speech nor in writing. It might as well be dismissed with great advantage from sober literature as it has been for the official documents."</ref>

Japanese emperors take on a [[regnal name]], which is the common and polite way to refer to the emperor as a person during their reign. Japanese regnal names are more precisely names for a period of time that begins with a historical event, such as the enthronement of an emperor. Since Emperor Meiji, it has been customary to have one [[Japanese era name|era]] per emperor and to rename each emperor after his death using the name of the era over which he presided. Before Emperor Meiji, the names of the eras were changed more frequently, and the posthumous names of the emperors were chosen differently.<ref>{{cite news |last1=Sieg |first1=Linda |title=Japan new imperial era name, Reiwa - Origins, Selection, Meaning |url=https://www.reuters.com/article/idUSKCN1RD1B6/ |access-date=20 March 2024 |work=Reuters}}</ref>

[[File:Emperor of Japan - Tenno - New Years 2010.ogv|thumb|thumbtime=7|Emperor Akihito giving a New Year's address to the people in 2010]]

[[Hirohito]] was never referred to by his name in Japan. He was given the [[posthumous name]] ''[[Shōwa Tennō]]'' after his death, which is the only name that Japanese speakers currently use when referring to him.<ref>{{Cite web|url=https://www.latimes.com/world/asia/la-fg-japan-archive-1989jan07-story.html|title=From the archives: Japan's Hirohito, 87, Dies After a Reign of 62 Years|website=[[Los Angeles Times]]|date=January 7, 1989}}</ref>

The current emperor on the throne is typically referred to as ''Tennō Heika'' ({{lang|ja|天皇陛下}}, "His [Imperial] Majesty the Emperor"), ''Kinjō Heika'' ({{lang|ja|今上陛下}}, "His Current Majesty") or simply ''Tennō'', when speaking Japanese. Emperor [[Akihito]] received the title ''Daijō Tennō'' ({{lang|ja|太上天皇}}, Emperor Emeritus), often shortened to ''Jōkō'' ({{lang|ja|上皇}}), upon his abdication on 30 April 2019, and is expected to be renamed ''Heisei Tennō'' ({{lang|ja|平成天皇}}) after his death and will then be referred to exclusively by that name in Japanese.

===Origin of the title===
{{see also|Okimi}}
Originally, the ruler of Japan was known as either {{lang|ja|大和大王}}/{{lang|ja|大君}} (''Yamato-ōkimi'', "Grand King of [[Yamato Province|Yamato]]"), {{lang|ja|倭王}}/{{lang|ja|倭国王}} (''Wa-ō''/''Wakoku-ō'', [[Five kings of Wa|"King of Wa"]], used externally) or {{lang|ja|治天下大王}} (''Ame-no-shita shiroshimesu ōkimi'' or ''Sumera no mikoto'', "Grand King who rules all under heaven", used internally) in Japanese and Chinese sources before the 7th century. The oldest diplomatic reference to the title {{lang|ja|天子}} (''Tenshi'', Emperor or [[Son of Heaven]]) can be found in a diplomatic document sent from [[Empress Suiko]] to the [[Sui dynasty]] of China in 607. In this document, Empress Suiko introduced herself to [[Emperor Yang of Sui]] as 日出處天子 (''Hi izurutokoro no tenshi'') meaning "Heavenly son of the land where the sun rises".<ref>Huffman, James (2010). ''Japan in World History''. p.15. Oxford University Press. {{ISBN|978-0-19-979884-1}}.</ref><ref>[https://web.archive.org/web/20191225163843/https://business.nikkei.com/atcl/seminar/19/00080/093000003/ Satoshi Yabuuchi, ''時代背景から知る 仏像の秘密'', The Nikkei], October 10, 2019</ref> The oldest documented use of the title {{lang|ja|天皇}} (''Tennō'', heavenly emperor) appears on a wooden slat, or ''[[mokkan]]'', that was unearthed in [[Asuka, Nara|Asuka-mura, Nara Prefecture]] in 1998 and dated back to the reign of [[Emperor Tenmu]] and [[Empress Jitō]] in the 7th century.<ref>Ooms, Herman (2009). ''Imperial Politics and Symbolics in Ancient Japan: The Tenmu Dynasty, 650–800.'' pp.154–156. University of Hawaii Press. {{ISBN|978-0-8248-3235-3}}.</ref><ref>[https://web.archive.org/web/20180318174952/http://bunshun.jp/articles/-/6397 Masataka Kondo, ''ご存知ですか 3月2日は飛鳥池遺跡で「天皇」木簡が出土したと発表された日です''], March 2, 2018.</ref>

==Marriage traditions==
{{More citations needed section|date= January 2021}}
[[File:Crown Princess Masako of Japan.jpg|thumb|upright|180px|left|[[Empress Masako|Masako]], empress consort of Japan since 2019]]
Throughout history, Japanese emperors and noblemen appointed a spouse to the position of chief wife, rather than just keeping a [[harem]] or an assortment of female attendants.

The Japanese imperial dynasty consistently practiced official [[polygamy]] until the [[Taishō period]] (1912–1926). Besides his empress, the emperor could take, and nearly always took, several secondary consorts ("[[concubine]]s") of various hierarchical degrees. Concubines were allowed also to other dynasts ([[Shinnōke]], [[Ōke]]). After a decree by [[Emperor Ichijō]] ({{reign | 986 | 1011}}), some emperors even had two empresses simultaneously (identified by the separate titles [[Empress of Japan|''kōgō'']] and ''chūgū''). With the help of all this polygamy, the imperial clan could produce more offspring. (Sons by secondary consorts were usually recognized as imperial princes, too, and such a son could be recognized as heir to the throne if the empress did not give birth to an heir.)

Of the eight reigning empresses of Japan, none married or gave birth after ascending the throne. Some of them, being widows, had produced children before their reigns. In the succession, children of the empress were preferred over sons of secondary consorts. Thus it was significant which [[Quarters of nobility|quarters]] had preferential opportunities in providing chief wives to imperial princes, i.e. supplying future empresses.

Apparently, the oldest tradition of official marriages within the imperial dynasty involved marriages between dynasty members, even between half-siblings or between uncle and niece. Such marriages were deemed to preserve better the imperial blood; or they aimed at producing children symbolic of a reconciliation between two branches of the imperial dynasty. Daughters of other families remained concubines until [[Emperor Shōmu]] (701–706){{mdash}}in what was specifically reported as the first elevation of its kind{{mdash}}elevated his [[Fujiwara clan|Fujiwara]] consort [[Empress Kōmyō]] to chief wife.

Japanese monarchs have been, as much as others elsewhere, dependent on making alliances with powerful chiefs and with other monarchs. Many such alliances were sealed by marriages. However, in Japan such marriages soon became incorporated as elements of tradition which controlled the marriages of later generations, though the original practical alliance had lost its real meaning. A repeated pattern saw an imperial son-in-law under the influence of his powerful non-imperial father-in-law.

Beginning from the 7th and 8th centuries, emperors primarily took women of the [[Fujiwara clan]] as their highest-ranking wives – the most probable mothers of future monarchs. This was cloaked as a tradition of marriage between heirs of two ''[[kami]]'' (Shinto deities): descendants of Amaterasu with descendants of the family ''kami'' of the Fujiwara. (Originally, the Fujiwara descended from relatively minor nobility, thus their ''kami'' is an unremarkable one in the Japanese myth world.) To produce imperial children, heirs of the nation, with two-side descent from the two kami, was regarded as desirable – or at least it suited powerful Fujiwara lords, who thus received preference in the imperial marriage-market. The reality behind such marriages was an alliance between an imperial prince and a Fujiwara lord (his father-in-law or grandfather), the latter with his resources supporting the prince to the throne and most often controlling the government. These arrangements established the tradition of regents ([[Sesshō and Kampaku]]), with these positions held only by a Fujiwara [[sekke]] lord.

Earlier, the emperors had married women from families of the government-holding [[Soga clan|Soga]] lords, and women of the imperial clan, i.e. various-degree cousins and often even their own half-sisters. Several imperial figures of the 5th and 6th centuries such as [[Prince Shōtoku]] (574–622) were children of half-sibling couples. Such marriages often served as alliance or succession devices: the Soga lord ensured his domination of a prince who would be put on the throne as a puppet; or a prince ensured the combination of two imperial descents, to strengthen his own and his children's claim to the throne. Marriages were also a means to seal a reconciliation between two imperial branches.

After a couple of centuries, emperors could no longer take anyone from outside such families as a primary wife, no matter what the potential expediency of such a marriage and the power or wealth offered by such a match. Only very rarely did a prince ascend the throne whose mother was not descended from the approved families. The earlier necessity and expediency had mutated into a strict tradition that did not allow for current expediency or necessity, but only prescribed the daughters of a restricted circle of families as eligible brides, because they had produced eligible brides for centuries. Tradition had become more forceful than law.

Fujiwara women often became empresses, while concubines came from less exalted noble families. In the last thousand years, sons of an imperial male and a Fujiwara woman have been preferred in the succession. The five Fujiwara families, [[Ichijō family|Ichijō]], [[Kujō family|Kujō]], [[Nijō family|Nijō]], [[Konoe family|Konoe]], and [[Takatsukasa family|Takatsukasa]], functioned as the primary source of imperial brides from the 8th century to the 19th century, even more often than daughters of the imperial clan itself. Fujiwara daughters were thus the usual empresses and mothers of emperors. The Meiji-era [[Imperial Household Law|Imperial House Law]] of 1889 made this restriction on brides for the emperor and crown prince explicit. A clause stipulated that daughters of Sekke (the five main branches of the higher Fujiwara) and daughters of the imperial clan itself were primarily acceptable brides. The law was repealed in the aftermath of World War II. In 1959 the future Emperor Akihito became the first crown-prince for over a thousand years to marry a consort from outside the previously eligible circle.

== Three Sacred Treasures ==
[[File:三種の神器 1200x1200.png|thumb|Conjectural images of the Imperial Regalia of Japan]]
{{main|Three Sacred Treasures}}

In [[Japanese mythology]], the sacred treasures were bestowed on [[Ninigi-no-Mikoto]], the grandson of the goddess Amaterasu, at the advent of [[Tenson kōrin]]. Amaterasu sent him to pacify Japan by bringing the three celestial gifts that are used by the emperor.<ref name="Ashkenazi 2003">{{cite book |last1=Ashkenazi |first1=Michael |title=Handbook of Japanese mythology |date=2003 |publisher=ABC-CLIO |location=Santa Barbara, California |isbn=9781576074671 |page=[https://archive.org/details/handbookofjapane0000ashk/page/222 222] |chapter-url=https://archive.org/details/handbookofjapane0000ashk |chapter-url-access=registration |chapter=Ninigi-no-Mikoto}}</ref> The account of Ninigi being sent to earth appears in the {{Lang|ja-latn|[[Nihon Shoki]]}}. The [[Three Sacred Treasures]] were inherited by successive Japanese emperors, which are the same as or similar to the sacred treasures in mythology. These three gifts signify that the emperor is the descendant of Amaterasu. The three sacred treasures are:<ref name="bbctres">{{cite web |title=Akihito and Japan's Imperial Treasures that make a man an emperor |website=BBC |author=Anna Jones |date=27 April 2019 |url=https://www.bbc.com/news/world-asia-47931671 |archive-url=https://web.archive.org/web/20220324032626/https://www.bbc.com/news/world-asia-47931671 |archive-date=March 24, 2022}}</ref>

*[[Yata no Kagami]] (kept at the [[Ise Grand Shrine]], with a replica at the central shrine of the [[Three Palace Sanctuaries]])<ref name="bbctres"/>
*[[Yasakani no Magatama]] (kept at the central shrine of the [[Three Palace Sanctuaries]])<ref name="bbctres"/>
*[[Kusanagi]] sword (kept at the [[Atsuta Shrine]])<ref name="bbctres"/>

During the succession rite (senso, 践祚), possessing the jewel [[Yasakani no Magatama]], the sword [[Kusanagi]] and the mirror [[Yata no Kagami]] are a testament of the legitimate serving emperor.<ref>{{Cite web |url=http://www.kunaicho.go.jp/word/word-sokui.html |title=ご即位・立太子・成年に関する用語 |publisher=宮内庁 |access-date=2019-05-14 |archive-url=https://web.archive.org/web/20210509005644/http://www.kunaicho.go.jp/word/word-sokui.html |archive-date=May 9, 2021}}</ref>

==Succession==
{{see also|Enthronement of the Japanese emperor}}
[[File:Ceremony of the Enthronement of His Majesty the Emperor at the Seiden8.jpg|thumb|220x220px|Enthronement ceremony of Emperor [[Naruhito]] with Prime Minister [[Shinzo Abe]] (22 October 2019)]]
The origins of the Japanese imperial dynasty are obscure, and it bases its position on the claim that it has "reigned since [[time immemorial]]". There are no records of any emperor who was not said to have been a descendant of other, yet there is suspicion that [[Emperor Keitai]] (c. AD 500) may have been an unrelated outsider, though the sources (Kojiki, Nihon-Shoki) state that he was a male-line descendant of [[Emperor Ōjin]]. However, his descendants, including his successors, were according to records descended from at least one and probably several imperial princesses of the older lineage.

Millennia ago, the Japanese imperial family developed its own peculiar system of hereditary succession. It has been non-primogenitural, more or less agnatic, based mostly on rotation. Today, Japan uses strict [[agnatic primogeniture]], which was adopted from [[House of Hohenzollern|Prussia]], by which Japan was greatly influenced in the 1870s.

The controlling principles and their interaction were apparently very complex and sophisticated, leading to even idiosyncratic outcomes. Some chief principles apparent in the succession have been:
* Women were allowed to succeed (but there existed no known children of theirs whose father did not also happen to be an agnate of the imperial house, thus there is neither a precedent that a child of an imperial woman with a non-imperial man could inherit, nor a precedent forbidding it for children of empresses). However, female accession was clearly much more rare than male.
* Adoption was possible and a much used way to increase the number of succession-entitled heirs (however, the adopted child had to be a child of another member agnate of the imperial house).
* Abdication was used very often, and in fact occurred more often than death on the throne. In those days, the emperor's chief task was priestly (or godly), containing so many repetitive rituals that it was deemed that after a service of around ten years, the incumbent deserved pampered retirement as an honored former emperor.
* Primogeniture was not used – rather, in the early days, the imperial house practiced something resembling a system of rotation. Very often a brother (or sister) followed the elder sibling even in the case of the predecessor leaving children. The "turn" of the next generation came more often after several individuals of the senior generation. Rotation went often between two or more of the branches of the imperial house, thus more or less distant cousins succeeded each other. [[Emperor Go-Saga]] even decreed an official alternation between heirs of his two sons, which system continued for a couple of centuries (leading finally to shogun-induced (or utilized) strife between these two branches, the "southern" and "northern" emperors). Towards the end, the alternates were very distant cousins counted in degrees of male descent (but all that time, intermarriages occurred within the imperial house, thus they were close cousins if female ties are counted). During the past five hundred years, however, probably because of [[Confucianism|Confucian]] influence, inheritance by sons – but not always, or even most often, the eldest son has been the norm.

Historically, the succession to the [[Chrysanthemum Throne]] has always passed to descendants in male line from the imperial lineage. Generally, they have been males, though over the reign of one hundred monarchs there have been nine women (one pre-historical and eight historical) as emperor on eleven occasions.

Over a thousand years ago, a tradition started that an emperor should ascend relatively young. A dynast who had passed his toddler years was regarded suitable and old enough. Reaching the age of legal majority was not a requirement. Thus, a multitude of Japanese emperors have ascended as children, as young as 6 or 8 years old. The high-priestly duties were deemed possible for a walking child. A reign of around 10 years was regarded a sufficient service. Being a child was apparently a fine property, to better endure tedious duties and to tolerate subjugation to political power-brokers, as well as sometimes to cloak the truly powerful members of the imperial dynasty. Almost all Japanese empresses and dozens of emperors abdicated and lived the rest of their lives in pampered retirement, wielding influence behind the scenes. Several emperors abdicated to their entitled retirement while still in their teens. These traditions show in Japanese folklore, theater, literature, and other forms of culture, where the emperor is usually described or depicted as an adolescent.

Before the Meiji Restoration, Japan had eleven reigns of reigning empresses, all of them daughters of the male line of the Imperial House. None ascended purely as a wife or as a widow of an emperor. Imperial daughters and granddaughters, however, usually ascended the throne as a sort of a "stop gap" measure – if a suitable male was not available or some imperial branches were in rivalry so that a compromise was needed. Over half of Japanese empresses and many emperors abdicated once a suitable male descendant was considered to be old enough to rule (just past toddlerhood, in some cases). Four empresses, [[Empress Suiko]], [[Empress Kōgyoku]] (also [[Empress Saimei]]), and [[Empress Jitō]], as well as the legendary [[Empress Jingū]], were widows of deceased emperors and princesses of the blood imperial in their own right. One, [[Empress Genmei]], was the widow of a crown prince and a princess of the blood imperial. The other four, [[Empress Genshō]], [[Empress Kōken]] (also Empress Shōtoku), [[Empress Meishō]], and [[Empress Go-Sakuramachi]], were unwed daughters of previous emperors. None of these empresses married or gave birth after ascending the throne.

Article 2 of the [[Meiji Constitution]] (the Constitution of the Empire of Japan) stated, "The Imperial Throne shall be succeeded to by imperial male descendants, according to the provisions of the Imperial House Law." The 1889 Imperial Household Law fixed the succession on male descendants of the imperial line, and specifically excluded female descendants from the succession. In the event of a complete failure of the main line, the throne would pass to the nearest collateral branch, again in the male line. If the empress did not give birth to an heir, the emperor could take a concubine, and the son he had by that concubine would be recognized as heir to the throne. This law, which was promulgated on the same day as the Meiji Constitution, enjoyed co-equal status with that constitution.

Article 2 of the Constitution of Japan, promulgated in 1947 by influence of the U.S. occupation administration, provides that "The Imperial Throne shall be dynastic and succeeded to in accordance with the Imperial Household Law passed by the Diet." The [[Imperial Household Law]] of 1947, enacted by the ninety-second and last session of the Imperial Diet, retained the exclusion on female dynasts found in the 1889 law. The government of Prime Minister [[Yoshida Shigeru]] hastily cobbled together the legislation to bring the Imperial Household in compliance with the American-written Constitution of Japan that went into effect in May 1947. In an effort to control the size of the imperial family, the law stipulates that only legitimate male descendants in the male line can be dynasts, that imperial princesses lose their status as imperial family members if they marry outside the imperial family,<ref>Martin, Alex, "[http://www.japantimes.co.jp/text/nn20111216f1.html Imperial law revisited as family shrinks, Emperor ages]", ''[[Japan Times]]'', December 16, 2011, p. 3.</ref> and that the emperor and other members of the Imperial Family may not adopt children. It also prevented branches, other than the branch descending from Taishō, from being imperial princes any longer.

===Current status===
{{Main|Succession to the Japanese throne}}
Succession is now regulated by laws passed by the National Diet. The current law excludes women from the succession. A change to this law had been considered until [[Kiko, Crown Princess of Japan|Princess Kiko]] gave birth to [[Prince Hisahito of Akishino|Prince Hisahito]].

Until the birth of Hisahito, son of [[Fumihito, Crown Prince of Japan|Prince Akishino]], on 6 September 2006, there was a potential [[Order of succession|succession]] problem, since Prince Akishino was the only male child to be born into the imperial family since 1965. Following the birth of [[Aiko, Princess Toshi|Princess Aiko]] on 1 December 2001, there was public debate about amending the current Imperial Household Law to allow women to succeed to the throne. In January 2005, Prime Minister [[Junichiro Koizumi]] appointed a special panel composed of judges, university professors, and civil servants to study changes to the [[Imperial Household Law]] and to make recommendations to the government.

The panel dealing with the succession issue recommended on 25 October 2005, amending the law to allow females of the male line of imperial descent to ascend the Japanese throne. On January 20, 2006, Prime Minister Junichiro Koizumi devoted part of his annual keynote speech to the controversy, pledging to submit a bill allowing women to ascend the throne to ensure that the succession continues in the future in a stable manner. Shortly after the announcement that [[Kiko, Crown Princess of Japan|Princess Kiko]] was pregnant with her third child, Koizumi suspended such plans. Her son, Prince Hisahito, is the third in line to the throne under the current law of succession. On January 3, 2007, Prime Minister [[Shinzo Abe]] announced that he would drop the proposal to alter the Imperial Household Law.<ref>{{cite news |url= https://www.usatoday.com/money/world/2007-01-03-japan-female-monarch_x.htm |title=Report: Japan to drop plan to allow female monarch |work=[[USA Today]] |date=January 3, 2007 |publisher=[[Gannett Company|Gannett]] |location=[[McLean, VA]] |issn=0734-7456 |agency=The Associated Press |access-date=October 20, 2011}}</ref>

Another proposed plan is to allow unmarried men from the abolished collateral branches of the imperial family to rejoin through adoption or marriage. This would be an emergency measure to ensure stable succession. It does not revise the Imperial Household Law.<ref>{{cite news |url= https://mainichi.jp/english/articles/20191023/p2g/00m/0na/090000c |title=Report: Japan lawmakers eye restoration of ex-imperial members for succession |author=Mainichi Japan |publisher=[[The Mainichi]] |date=October 23, 2019 |access-date=October 24, 2019 |archive-url= https://web.archive.org/web/20191024231015/https://mainichi.jp/english/articles/20191023/p2g/00m/0na/090000c |archive-date=October 24, 2019}}</ref> This does not restore the royalty of the [[Ōke|11 collateral branches]] of the Imperial House that were abolished in October 1947.

Crown [[Fumihito, Crown Prince of Japan|Prince Akishino]] was formally declared first in line to the [[Chrysanthemum Throne|chrysanthemum throne]] on November 8, 2020.<ref name="akishino">{{cite web |website=Japan Times |url=https://www.japantimes.co.jp/news/2020/11/08/national/crown-prince-akishino-formally-declared-first-line-throne/ |title=Crown Prince Akishino formally declared first in line to the throne |date=November 8, 2020 |archive-url=https://web.archive.org/web/20201108140053/https://www.japantimes.co.jp/news/2020/11/08/national/crown-prince-akishino-formally-declared-first-line-throne/ |archive-date=November 8, 2020}}</ref>

==Burial traditions==
[[File:Musashiryo -01.jpg|thumb|Entrance of the [[Musashi Imperial Graveyard]] in [[Hachiōji, Tokyo|Hachiōji]], Tokyo]]

During the [[Kofun period]], so-called "archaic funerals" were held for the dead emperors, but only the funerary rites from the end of the period, which the chronicles describe in more detail, are known. They were centered around the rite of the ''mogari'' ({{lang|ja|殯}}), a provisional depository between death and permanent burial.<ref name="Nanzan Bulletin">{{cite web|url=http://nirc.nanzan-u.ac.jp/nfile/1853|title=The Funerals of the Japanese Emperors|author=François Macé}}</ref>

[[Empress Jitō]] was the first Japanese imperial personage to be cremated (in 703). After that, with a few exceptions, all emperors were cremated up to the [[Edo period]].<ref name="Nanzan Bulletin" /> For the next 350 years, in-ground burial became the favoured funeral custom. Until 1912, the emperors were usually buried in Kyoto.<ref>Seidensticker, Edward. (1990). ''Tokyo Rising,'' p. 20.</ref> From [[Emperor Taishō]] onward, the emperors have been buried at the [[Musashi Imperial Graveyard]] in Tokyo.

In 2013, the Imperial Household Agency announced that Emperor Akihito and [[Empress Emerita Michiko|Empress Michiko]] would be cremated after they die.<ref>{{cite web|url=http://www.japantimes.co.jp/news/2013/11/14/national/emperor-empress-plan-to-be-cremated/#.Uo2fuJGPHAY|title=Emperor, Empress plan to be cremated|website=[[The Japan Times]]|access-date=November 21, 2013}}</ref>

==Wealth==
[[File:Tokyo Imperial Palace Aerial photograph 2019.jpg|thumb|220px|right|[[Tokyo Imperial Palace]]]]

Until the end of World War II, the Japanese monarchy was thought to be among the wealthiest in the world.<ref>{{cite news |date=3 May 1989 |title=Legacy of Hirohito |work=The Times }}</ref> Before 1911, no distinction was made between the imperial crown estates and the emperor's personal properties, which were considerable. The Imperial Property Law, which came into effect in January 1911, established two categories of imperial properties: the hereditary or crown estates and the personal ("ordinary") properties of the imperial family. The Imperial Household Minister was given the responsibility for observing any judicial proceedings concerning imperial holdings. Under the terms of the law, imperial properties were only taxable in cases where no conflict with the Imperial House Law existed; however, crown estates could only be used for public or imperially-sanctioned undertakings. Personal properties of certain members of the imperial family, in addition to properties held for imperial family members who were minors, were exempted from taxation. Those family members included the Empress Dowager, the Empress, the Crown Prince and Crown Princess, the Imperial Grandson and the consort of the Imperial Grandson.<ref name="court_wealth">{{cite book |chapter=Japan – The Imperial Court |title=The Japan-Manchoukuo Year Book |publisher=The Japan-Manchoukuo Year Book Co. |date=1938 |pages=50–51 }}</ref> As a result of the poor economic conditions in Japan, {{convert|289,259.25|acre|hectare|order=flip}} of crown lands (about 26% of the total landholdings) were either sold or transferred to government and private-sector interests in 1921. In 1930, the Nagoya Detached Palace ([[Nagoya Castle]]) was donated to the city of [[Nagoya]], with six other imperial villas being either sold or donated at the same time.<ref name="court_wealth"/> In 1939, [[Nijō Castle]], the former Kyoto residence of the Tokugawa shoguns and an imperial palace since the Meiji Restoration, was likewise donated to the city of Kyoto.

At the end of 1935, according to official government figures, the Imperial Court owned roughly {{convert|3,111,965|acre|hectare|order=flip}} of landed estates, the bulk of which ({{convert|2,599,548|acre|hectare|order=flip}}) were the emperor's private lands, with the total acreage of the crown estates amounting to some {{convert|512,161|acre|hectare|order=flip}}; those landholdings comprised palace complexes, forest and farm lands and other residential and commercial properties. The total value of the imperial properties was then estimated at ¥650&nbsp;million, or roughly US$195&nbsp;million at prevailing exchange rates.<ref name="worth" group="note">Roughly US$23.2&nbsp;billion in 2022, in terms of relative income value. {{Cite web |last=Williamson |first=Samuel H. |date=2023 |title=Seven Ways to Compute the Relative Value of a U.S. Dollar Amount, 1790 to Present |url=https://www.measuringworth.com/calculators/uscompare/ |publisher=[[MeasuringWorth]] |access-date=22 February 2023}}</ref><ref name="court_wealth"/><ref>"Exchange and Interest Rates", ''Japan Year Book 1938–1939'', Kenkyusha Press, Foreign Association of Japan, Tokyo. pp. 332–333.</ref> This was in addition to the emperor's personal fortune, which amounted to hundreds of millions of yen and included numerous family heirlooms and furnishings, purebred livestock and investments in major Japanese firms, such as the Bank of Japan, other major Japanese banks, the [[Imperial Hotel (company)|Imperial Hotel]] and [[Nippon Yusen]].<ref name="court_wealth"/>

Following Japan's defeat in the Second World War, all of the collateral branches of the imperial family were abolished under the Allied occupation of the country and the subsequent constitutional reforms, forcing those families to sell their assets to private or government owners. Staff numbers in the imperial households were slashed from a peak of roughly 6,000 to about 1,000. The imperial estates and the emperor's personal fortune (then estimated at US$17.15&nbsp;million, or roughly US$800&nbsp;million in 2024 terms) were transferred to either state or private ownership, excepting {{convert|6,810|acre|hectare|order=flip}} of landholdings. Since the 1947 constitutional reforms, the imperial family has been supported by an official civil list sanctioned by the Japanese government. The largest imperial divestments were the former imperial Kiso and Amagi forest lands in [[Gifu prefecture|Gifu]] and [[Shizuoka prefecture|Shizuoka]] prefectures, grazing lands for livestock in [[Hokkaido]] and a stock farm in the Chiba region, all of which were transferred to the [[Ministry of Agriculture, Forestry and Fisheries (Japan)|Ministry of Agriculture, Forestry and Fisheries]]. Imperial property holdings have been further reduced since 1947 after several handovers to the government. Today, the primary [[List of Japanese imperial residences|imperial properties]] include the two imperial palaces at Tokyo and Kyoto, several imperial villas and a number of imperial farms and game preserves.<ref>{{cite news |last=Reed |first=Christopher |date=5 October 1971 |title=Few personal possessions for reigning monarch |work=The Times }}</ref>

As of 2017, Akihito has an estimated net worth of US$40&nbsp;million.<ref>{{cite news |url=http://www.ibtimes.com/akihito-net-worth-2017-how-rich-japanese-emperor-parliament-passed-historic-law-his-2549849 |title=Akihito Net Worth 2017: How Rich Is Japanese Emperor As Parliament Passed Historic Law For His Abdication |work=[[The International Business Times]] |date=June 9, 2017 |access-date=May 27, 2018 |archive-url=https://web.archive.org/web/20200805110842/http://www.ibtimes.com/akihito-net-worth-2017-how-rich-japanese-emperor-parliament-passed-historic-law-his-2549849 |archive-date=August 5, 2020}}</ref> The wealth and expenditures of the emperor and the imperial family have remained a subject of speculation and were largely withheld from the public until 2003, when Mori Yohei, a former royal correspondent for the ''[[Mainichi Shimbun]]'', obtained access to 200 documents through a recently passed public information law. Mori's findings, which he published in a book, revealed details of the imperial family's US$240&nbsp;million civil list (in 2003 values).<ref>{{cite web |url=https://www.poundsterlinglive.com/bank-of-england-spot/historical-spot-exchange-rates/gbp/GBP-to-USD-2003 |title=British Pound to US Dollar Spot Exchange Rates for 2003 from the Bank of England |website=PoundSterling Live |access-date=May 27, 2018 |archive-url=https://web.archive.org/web/20200731035717/https://www.poundsterlinglive.com/bank-of-england-spot/historical-spot-exchange-rates/gbp/GBP-to-USD-2003 |archive-date=July 31, 2020}}</ref> Among other details, the book revealed the imperial family employed a staff of over 1,000 people.<ref>{{cite news |url=https://www.telegraph.co.uk/news/worldnews/asia/japan/1440830/Book-lifts-the-lid-on-Emperors-high-living.html |title=Book lifts the lid on Emperor's high living |work=[[The Daily Telegraph]] |date=7 September 2003 |access-date=May 27, 2018 |archive-url=https://web.archive.org/web/20190511195229/https://www.telegraph.co.uk/news/worldnews/asia/japan/1440830/Book-lifts-the-lid-on-Emperors-high-living.html |archive-date=May 11, 2019}}</ref> The total cost of events related to the enthronement of Emperor Naruhito was approximately 16.6 billion yen ($150 million) in 2019. This is 30% higher than Emperor Emeritus Akihito's accession (1990).<ref>{{cite news |url=https://english.kyodonews.net/news/2019/05/44e8f88a9c7d-qa-how-are-the-imperial-familys-money-and-property-managed.html |title=Q&A;: How are the imperial family's money and property managed? |publisher=[[Kyodo News]] |date=May 4, 2019 |access-date=September 27, 2020 |archive-url=https://web.archive.org/web/20200927123548/https://english.kyodonews.net/news/2019/05/44e8f88a9c7d-qa-how-are-the-imperial-familys-money-and-property-managed.html |archive-date=27 September 2020}}</ref>

==See also==
{{portal|Japan|Monarchy}}<!---♦♦♦ Please keep the list in alphabetical order ♦♦♦--->
* [[Anti-monarchism in Japan]]
* [[Chrysanthemum taboo]]
* [[Controversies regarding the role of the Emperor of Japan]]
* [[Daijō Tennō]]
* [[Divine right of kings]]
* [[Emperor system]]
* [[Family tree of Japanese monarchs]]
* [[Imperial House of Japan]]
* [[Japanese Air Force One]]
* [[Japanese honors system]]
* [[Official state car#Japan|Japanese official state car]]
* [[List of emperors of Japan]]
* [[Reigning Emperor]]
* [[Sacred king]]
* [[State Shinto]]

== References ==
=== Notes ===
{{Notelist}}

=== Informational notes ===
{{Reflist|group=note}}

=== Citations ===
{{Reflist|30em}}

=== General and cited references ===
* [[Kan'ichi Asakawa|Asakawa, Kan'ichi]] (1903). [[iarchive:bub gb K1MuAAAAYAAJ|<!-- quote=The Early Institutional Life of Japan. --> ''The Early Institutional Life of Japan'']]. Tokyo: [[Shueisha]]. {{OCLC|4427686}}. [https://openlibrary.org/books/OL6961540M/early_institutional_life_of_Japan Online, multi-formatted, full-text book at openlibrary.org].
* Bar-On Cohen, Einat (2012–12). "The Forces of Homology—Hirohito, Emperor of Japan and the 1928 Rites of Succession". ''History and Anthropology''. '''23''' (4): 425–443. {{doi|10.1080/02757206.2013.726990}}. {{ISSN|0275-7206}}.
* {{cite EB1911 |last=Brinkley |first=Francis |wstitle=Japan/09 Domestic History |display=Japan § 'Domestic History' |volume=15 |pages=252–273}}
* {{Cite magazine |date=19 October 2019 |title=Japan's Emperor Is a Prisoner in His Own Palaces |url=https://www.economist.com/asia/2019/10/17/japans-emperor-is-a-prisoner-in-his-own-palaces |url-access=subscription |magazine=[[The Economist]] |volume=433 |issue=9165 |page=37 (US edition) |access-date=12 December 2020}} [https://link.gale.com/apps/doc/A602958566/ITBC?u=umuser&sid=ITBC&xid=c50cf53b Alternate link] {{Subscription required}}.<!-- Alternate title: "Slave to the Tortoise Shell: Japan's Monarchy". -->
* {{Cite book |last1=Fiévé |first1=Nicolas |last2=Waley |first2=Paul |date=2003 |title=Japanese Capitals in Historical Perspective: Place, Power and Memory in Kyoto, Edo and Tokyo |publisher=Routledge |isbn=0-4154-0581-5}}
* Large, Stephen S. (1992). ''Emperor Hirohito and Shōwa Japan: A Political Biography''. London: Routledge. {{ISBN|0-585-44734-9}}. {{OCLC|52419479}}.
* {{Cite book|author=Kawamura, Noriko |title=Emperor Hirohito and the Pacific War|date=January 27, 2016|isbn=978-0-295-80631-0|location=Seattle|oclc=922925863 |publisher=University of Washington Press }}
* Pye, Lucian W.; Keene, Donald (2002). "Emperor of Japan: Meiji and His World, 1852-1912". ''Foreign Affairs''. '''81''' (5): 217. {{doi|10.2307/20033332}}. {{ISSN|0015-7120}}.
* {{Cite book |last=Roth |first=Andrew |date=March 15, 2007 |title=Dilemma in Japan |publisher= Roth Press |isbn=978-1-4067-6311-9}}
* [[Timon Screech|Screech, Timon]] (2006). ''Secret Memoirs of the Shoguns: Isaac Titsingh and Japan, 1779–1822''. London: [[RoutledgeCurzon]]. {{ISBN|0-7007-1720-X}}; {{ISBN|978-0-7007-1720-0}}.
* Shillony, Ben-Ami (2008). ''The Emperors of Modern Japan''. Leiden: Brill. {{ISBN|978-90-474-4225-7}}. {{OCLC|592756372}}.
* {{cite book |last=Takemae |first=Eiji |translator-last1=Ricketts |translator-first1=Robert |translator-last2=Swann |translator-first2=Sebastian |title=Inside GHQ: The Allied Occupation of Japan and its Legacy |location=New York |publisher=Continuum |year=2002 |isbn=0826462472 |oclc=45583413}}
* [[Isaac Titsingh|Titsingh, Isaac]] (1834). ''[[Nihon Ōdai Ichiran]]'' [https://books.google.com/books?id=18oNAAAAIAAJ&dq=nipon+o+dai+itsi+ran  ''Annales des empereurs du Japon''] pp.&nbsp;411–412, Paris: Royal Asiatic Society, Oriental Translation Fund of Great Britain and Ireland.

==External links==
{{Commons category|Emperors of Japan}}
{{Americana Poster|Mikado}}
* [https://www.kunaicho.go.jp/eindex.html The Imperial Household Agency]
* [https://www.worldhistory.org/Emperor_of_Japan/ Emperor of Japan] - [[World History Encyclopedia]]
* [http://www.friesian.com/sangoku.htm#japan List of the Emperors], accompanied with the regents and shoguns during their reign and a genealogical tree of the imperial family
* [http://www.heraldica.org/topics/royalty/japan.htm The Emperor of Japan], explanation of the title of Emperor in the context of western terminology
* [https://www.nbcnews.com/id/wbna16471340 Japan opens imperial tombs for research]
* [https://www.youtube.com/watch?v=kYiHUZ3Zf-A Emperor of Japan's New Year Address 2017] (YouTube)

{{Monarchs of Japan}}
{{Japan topics}}
{{List of Current Heads of State of G20}}
{{Heads of state and government of Asia}}
{{Authority control}}

[[Category:Deified Japanese monarchs]]
[[Category:Political history of Japan]]
[[Category:Emperors of Japan|*]]
[[Category:Japanese monarchy]]
[[Category:Ceremonial heads of state]]
[[Category:Articles containing video clips]]
[[Category:7th-century BC establishments]]
[[Category:660 BC]]

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