May 21 Koenraad IV, RC-German king (1237-54), dies at 26 in the year 1254.
Nov 03 Johannes III Doukas Vatatzes, Byzantine Emperor (1222-54)/saint, dies in the year 1254.
Dec 07 In the year 1254 innocent IV, [Sinibaldo dei Fieschi], Pope (1243-54), dies
May 13 Maria of Brabant, queen of France (d. 1321) was born in the year 1254.
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