William II of Sicily
William of Tyre described Sibylla, the third wife of Bohemond, as a witch who "practised evil magics" to seduce Bohemond. Michael the Syrian stated that Sibylla was a whore. Her sister was the wife of Bohemond's vassal, the lord of Burzey. Bohemond and Sibylla's daughter, Alice, became the wife of the wealthy Lord Guy I Embriaco of Jabala. William, the son of Bohemond and Sibylla, may have been named for William II of Sicily.