 King Baldwin was so incapacitated by his leprosy that it was necessary to appoint a regent, and Guy of Lusignan was chosen, as he was Baldwin's legal heir and the king was not expected to live.The inexperienced Guy led the Frankish army against Saladin's incursions into the kingdom, but neither side made any real gains, and Guy was criticized by his opponents for not striking against Saladin when he had the chance.In October 1183 Isabella married Humphrey of Toron at Kerak, during a siege by Saladin, who perhaps hoped to take some valuable prisoners.