What Happened in 1256
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- Apr 13 The Grand Union of the Augustinian order formed when Pope Alexander IV issues papal bull Licet ecclesiae catholicae
- May 4 Augustinian monastic order constituted at the Lecceto Monastery when Pope Alexander IV issues papal bull Licet ecclesiae catholicae
- Dec 15 Hulagu Khan captures and destroys Hashshashin stronghold at Alamut, in present-day Iran, part of the Mongol offensive on Islamic southwest Asia
- Jan 28 William II, Count of Holland and Zeeland (1234-56), and King of Germany (1248-56), dies in battle against the Frisians at 28
- Jun 13 Tankei, Japanese sculptor (b. 1173)
- Sep 1 Kujo Yoritsune, Japanese shogun (b. 1218)
- Oct 14 Kujō Yoritsugu, 5th shōgun of the Kamakura shogunate of Japan, dies at 16
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List of Years
Gregory I
Gregory XIII
Julius II
Julius III
Leo X
Pius V