What Happened in 1252
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- May 15 Pope Innocent IV issues the papal bull ad exstirpanda, which authorizes, but also limits, the torture of heretics in the Medieval Inquisition
- Jul 1 King Alfonso X 'the Wise', King of Castile & Leon crowned
- Mar 25 Conradin, Duke of Swabia (d. 1268), son of Conradin IV
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List of Years
Ferdinand III of Castile
Gregory I
Gregory XIII
Julius II
Julius III
Leo X
Pius V