 Baldwin IV , who had become seriously ill , made Guy of Lusignan bailli ( or regent ) in October 1183 . Within a month , Baldwin dismissed Guy , and had Guy 's five @-@ year @-@ old stepson , Baldwin V , crowned king . Raynald was not present at the child 's coronation , because he attended the wedding of his stepson , Humphrey , and Baldwin IV 's sister , Isabella , in Kerak . Saladin unexpectedly invaded Oultrejordain , forcing the local inhabitants to seek refuge in Kerak . After Saladin broke into the town , Raynald only managed to escape to the fortress because one of his retainers had hindered the attackers from seizing the bridge between the town and the castle . Saladin laid siege to Kerak . According to Ernoul , Raynald 's wife sent dishes from the wedding to Saladin , persuading him to stop bombarding the tower where her son and his wife stayed . After envoys from Kerak informed Baldwin IV of the siege , the royal army left Jerusalem for Kerak under the command of the king and Raymond III of Tripoli . Saladin abandoned the siege before their arrival on 4 December . On Saladin 's order , Izz al @-@ Din Usama had a fortress built at Ajloun , near the northern border of Raynald 's domains . 
