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 in the year 1254.
Sep 15 On this day in history birth of marco Polo, Italian explorer (d. 1324)
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Important Dates And Events In History - Hisdates.Com