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