Emirate of Sicily Emirate of Sicily The Emirate of Sicily () was an emirate on the island of Sicily which existed from 831 to 1091. Its capital was Palermo. Muslim Moors, who first conquered in 652, seized control of the entire island from the Byzantine Empire in a prolonged series of conflicts from 827 to 902. An Arab-Byzantine culture developed, producing a multiconfessional and multilingual state. The Emirate was conquered by Christian Norman mercenaries under Roger I of Sicily, who founded the County of Sicily in 1071. The last Muslim city in the island, Noto, was conquered in 1091. Sicilian Muslims remained citizens
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