Events in History
- May 31 Battle of the Kalka River: Mongol force led by Jebei and Subedei defeat a Russian alliance, after feigning their retreat, leading to the death of 20,000 Russians
- Jul 14 Louis VIII becomes King of France upon the death of his father, Philip II
- Dec 25 St Francis of Assisi assembles 1st Nativity scene (Greccio, Italy)
Historical Figures Who Died in 1223
- Mar 8 Wincenty Kadłubek, Polish chronicler (b. 1161)
- Mar 25 Afonso II, 3rd King of Portugal (1211-23), dies at 36
- Jul 14 King Philip II of France (1180-1223) dies at 57
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