Emirate of Sicily co-existence. This co-existence with the conquered population fell apart after the reconquest of Sicily, particularly following the death of King William II of Sicily in 1189. The Emirate of Sicily began to fragment as intra-dynastic quarrels took place within the Muslim regime. In 1044, under emir Hasan al-Samsam, who established al-Samsam Emirate of Sicily, the island fragmented into four qadits, or small fiefdoms: the qadit of Trapani, Marsala, Mazara and Sciacca, a certain Abdallah ibn Mankut; that of Girgenti, Castrogiovanni and Castronuovo (Ibn al-Hawwàs); that of Palermo and Catania; and that of Syracuse (Ibn Thumna). By 1065, all of them
Emirate of Sicily of the multi-ethnic County and subsequent Kingdom of Sicily, until those who had not already converted were expelled in the 1240s. Until the late 12th century, and probably as late as the 1220s, Muslims formed a substantial portion of the island's population. Their influence remains in some elements of the Sicilian language, as well as surnames and locations. In 535, Emperor Justinian I returned Sicily to the Roman Empire, now ruled from Constantinople exclusively. As the power of what is now known as the Byzantine Empire waned in the West, Sicily was conquered by the Rashidun Caliphate during the reign