Major Events
- May 15 King John of England names Stephen Langton as Archbishop of Canterbury
- Sep 11 Chinese general Chih-Chung assassinates Emperor Wei Shao Wang (former Prince of Wei) in Peking and proclaims himself Regent
- Sep 12 Battle at Muret: Crusade of Simon de Montfort beat Pedro II of Aragon
- Oct 13 Battle of Steppes: Hugh Pierrepont, Bishop of Liège & Louis II, Count of Loon defeat Henry I, Duke of Brabant
Born in 1213
- Mar 9 Hugh IV, Duke of Burgundy, French crusader, born in Villaines-en-Duesmois, France (d. 1271)
- Jun 10 Fakhr-al-Din Iraqi, Persian philosopher, born in Hamedan, Iran (d. 1289)
Who Died in 1213
- Jan 18 Tamar of Georgia, Queen of Georgia (1184-1213) presided over Gerogia's Golden Age, dies
- Feb 22 Wibert of Gembloers, benediction/writer/abbot of Gembloers, dies
- Sep 12 Pedro II [el Catolico], King of Aragon, dies in battle
- Sep 24 Gertrude of Merania, wife of Andrew II of Hungary (murdered) (b. 1185)
- Dec 17 John of Matha, French Christian saint and founder of the Order of the Most Holy Trinity dedicated to ransoming Christians captured by North African marauders, dies at 53