In May 1197, as Henry passed through Sicily on his way to join the German crusade, a revolt broke out. Jordan and his brother were both implicated. According to the "Annales Stadenses", erroneously under the year 1196, the leader of the revolt was one "Jordanus de Sicilia". The historian Evelyn Jamison first proposed that this was Jordan Lupin, a proposal which has been widely accepted. Nevertheless, the chronicler Richard of San Germano names the castellan of Castrogiovanni as a certain William the Monk ("Guilielmus monachus"), and it has been argued that he was the rebel leader later executed by Henry.