What Happened in 1236
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- Sep 22 The Lithuanians and Semigallians defeat the Livonian Brothers of the Sword in Battle of Šiauliai
- Jun 6 Wen Tianxiang, Prime Minister of China and scholar-general in the last years of the Southern Song Dynasty, born in Ji'an, China (d. 1283)
- Jan 14 Sava [Rastko], son of Serbia's king and saint, dies at 64
- Aug 18 Theodorus Van Celles, monastery founder (Kruisheren), dies
- Dec 23 Philippus Cancellarius, French theologist/poet (Summa Cum Laude), dies
- Jan 14 English King Henry III marries Eleonora of Provence