matplotlib
diff --git a/‎lib/matplotlib/axes/_base.py
Lines changed: 13 additions & 10 deletions b/‎lib/matplotlib/axes/_base.py
Lines changed: 13 additions & 10 deletions
diff --git a/‎lib/matplotlib/figure.py
Lines changed: 2 additions & 2 deletions b/‎lib/matplotlib/figure.py
Lines changed: 2 additions & 2 deletions
@@ -2952,15 +2952,6 @@ def _update_title_position(self, renderer):
 
         titles = []
 
-        # Get grouped axes for alignment if align_titles was previously called
-        # grouped_axs = self.figure._align_title_groups.get_siblings(self)
-        # if(grouped_axs is not None):
-        #     titles = []
-        #     for ax in grouped_axs:
-        #         titles.extend([ax.title, ax._left_title, ax._right_title])
-        # else:
-        #     titles = [self.title, self._left_title, self._right_title]
         titles = [self.title, self._left_title, self._right_title]
 
         for title in titles:
@@ -3014,12 +3005,24 @@ def _update_title_position(self, renderer):
                     title.set_position((x, y))
 
         ymax = max(title.get_position()[1] for title in titles)
-        # TODO: and for titles in sibling axes according to grouper
         for title in titles:
             # now line up all the titles at the highest baseline.
             x, _ = title.get_position()
             title.set_position((x, ymax))
 
+        # Assign
+        grouped_axs = self.figure._align_title_groups.get_siblings(self)
+        ymax = None
+        ax_max = None
+        for ax in grouped_axs:
+            if ymax is None or ax.bbox.ymax > ymax:
+                ymax = ax.bbox.ymax
+                ax_max = ax
+        # print("SELF FIRST: ", self.bbox.xmax)
+        # print("OTHER: ", ax_max.bbox.xmax)
+        self.bbox = ax_max.bbox
+        # print("SELF AFTER: ", self.bbox.xmax)
+
     # Drawing
     @martist.allow_rasterization
     def draw(self, renderer):
 
@@ -174,7 +174,7 @@ def __init__(self, **kwargs):
         # see self.align_xlabels and self.align_ylabels and
         # axis._get_tick_boxes_siblings
         self._align_label_groups = {"x": cbook.Grouper(), "y": cbook.Grouper()}
-        self._align_title_groups = {"title": cbook.Grouper()}
+        self._align_title_groups = cbook.Grouper()
 
         self.figure = self
         # list of child gridspecs for this figure
@@ -1294,7 +1294,7 @@ def align_titles(self, axs=None):
                             rowspanc = axc.get_subplotspec().rowspan
                             if rowspan.start == rowspanc.start or \
                                rowspan.stop == rowspanc.stop:
-                                self._align_title_groups['title'].join(ax, axc)
+                                self._align_title_groups.join(ax, axc)
 
     def align_ylabels(self, axs=None):
         """