Who was King of Jerusalem at the Battle of Hattin?

Guy of Lusignan was King of Jerusalem at the Battle of Hattin.

Guy became king in 1186 through his marriage to Sibylla, queen of Jerusalem. His accession followed the death of Sibylla’s son, Baldwin V, and deepened a succession dispute between rival factions among the kingdom’s nobles. Raymond III of Tripoli and others questioned Guy’s authority, but Guy retained the crown and commanded the kingdom’s field army.

At Hattin on 4 July 1187, Guy led the crusader forces against Saladin. The army marched toward Tiberias in an attempt to relieve the besieged city, but heat, thirst and repeated attacks weakened the column. Saladin’s forces surrounded and defeated the crusaders, capturing Guy along with many senior nobles. Saladin later released Guy, but Jerusalem and most of the kingdom’s territory had already fallen.

The other names in the options belong to different moments in Jerusalem’s history. Baldwin IV was Guy’s predecessor and Sibylla’s half-brother; Amalric I had ruled much earlier; and Conrad of Montferrat became a rival claimant after Hattin, especially during the struggle over Tyre and the succession.