May 21 Koenraad IV, RC-German king (1237-54), dies at 26 on this day in history.
Nov 03 Johannes III Doukas Vatatzes, Byzantine Emperor (1222-54)/saint, dies in the year 1254.
Dec 07 Innocent IV, [Sinibaldo dei Fieschi], Pope (1243-54), dies on this day in history.
May 13 Maria of Brabant, queen of France (d. 1321) was born on this day in history.
Sep 15 Marco Polo, Italian explorer (d. 1324) was born in the year 1254.
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Important Dates And Events In History - Hisdates.Com