Deaths on October 20

Pope Urban III

Pope Urban III (Latin: Urbanus III; died 20 October 1187), born Uberto Crivelli, reigned from 25 November 1185 to his death.

4 Jul

Battle of Hattin
The Crusades: Battle of Hattin: Saladin defeats Guy of Lusignan, King of Jerusalem.
20 Sep

Siege of Jerusalem (1187)
Saladin begins the Siege of Jerusalem.