sibylla, born into the frankish noble family of the house of anjou, was the countess of jaffa and ascalon and later reigned as queen of jerusalem during the third crusade. she was the eldest daughter of amalric i of jerusalem and agnes of courtenay and the sister of baldwin iv—the leper king of jerusalem. sibylla and her first husband, william longsword of montferrat, are the parents of baldwin v who would succeed the throne after baldwin iv. widowed and by all accounts in love with baldwin of ibelin—a widower twice her age—sibylla instead married a frankish knight, guy de lusignan, for political purposes. sibylla and guy had two daughters together. when sibylla’s brother, baldwin iv, died, her son was crowned. his reign was short-lived as he had always been a sickly child and thus upon his death—and after many complications as her half-sister isabella felt she herself should be crowned—sibylla was crowned queen of jerusalem. her chief concern during her reign was the imminent threat of saladin. in 1187 when saladin was besieging the holy city, sibylla personally led the defense, alongside balian of ibelin—baldwin of ibelin’s brother—and patriarch eraclius. in 1189, queen sibylla joined her husband to march on the city of tyre. less than two years later, while tyre was still under siege, just outside the city’s walls queen sibylla and her two daughters died of the epidemic that had swept through their camp.