Guy of Lusignan became king of Jerusalem through his marriage to Sibylla, the sister of Baldwin IV. His leadership was deeply contested, and in 1187 he marched the crusader army away from water before the catastrophic Battle of Hattin, where Saladin captured him. Released from captivity, Guy attempted to resume authority but faced opposition from Conrad of Montferrat. He eventually received Cyprus, establishing the Lusignan dynasty there.
Guy is a major character in Sharon Kay Penman’s The Land Beyond the Sea and Cecelia Holland’s Jerusalem. Historical fiction often depicts him as weak, vain or militarily incompetent, especially in contrast with Baldwin IV and Raymond of Tripoli. More balanced treatments consider the factional pressures, disputed intelligence and dynastic legitimacy that shaped the decision to fight at Hattin.