Amalric I of Jerusalem

Amalric I (1136–1174), younger son of Fulk and Melisende, was made count of Jaffa and later Ascalon by his mother. In 1157 he married Agnes of Courtenay, who bore Sibylla and Baldwin; he separated from her to be accepted as king on his brother Baldwin III's death in 1163.

His reign was dominated by repeated invasions of Egypt between 1163 and 1169 against Shirkuh and Saladin, and by an alliance and marriage with Byzantine Emperor Manuel I's grandniece Maria. Nur al-Din exploited Amalric's expeditions to attack the crusader states.

In 1169 Amalric and Manuel invaded Egypt together, but their forces cooperated poorly and failed. He died of dysentery in July 1174 and was succeeded by the leprous Baldwin IV.