Amalric I of Jerusalem
In 1170, the Armenian Prince Mleh of Cilicia invaded the Byzantine province of Cilicia with the assistance of Nur ad-Din and took Mopsuestia, Adana and Tarsus from their garrisons. Although Constantine could reoccupy the lost territories with the help of King Amalric I of Jerusalem and Prince Bohemund III, but a year or so later he was captured by Prince Mleh.