What Happened in 1243
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- Jun 25 Sinibaldo dei Fieschi elected as Pope Innocentius IV
- Jun 26 Battle of Köse Dağ: Mongols under Baiju defeat Seljuk army of Sultan Kaykhusraw II during Mongol attacks in north east Turkey
- Sep 2 Gilbert de Clare, 7th Earl of Hertford, English politician (d. 1295)
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List of Years
Gregory I
Gregory XIII
Julius II
Julius III
Leo X
Pius V