Sicily after the request for help from Ibnal-Thumna, emir of Catania, who was at war with his brother-in-law, Ibnal-Hawwas, emir of Agrigento. In May 1061
conquering western Sicily in 1053, emir Ibnal-Thumna [it; scn] of Syracuse struggled to defeat his brother-in-law Ibn Hawwas [it; scn], the emir of Enna in