Metropolitan City of Palermo Metropolitan City of Palermo The Metropolitan City of Palermo () is a metropolitan city in Sicily, Italy. Its capital is the city of Palermo. It replaced the Province of Palermo and comprises the city of Palermo and other 82 municipalities ("comuni"). It was first created by the reform of local authorities (Law 142/1990) and then established by regional law on 15 August 2015.. The Metropolitan City faces the Tyrrhenian Sea on the north, it while on the west it is bordered by the province of Trapani, on the south by the province of Agrigento and by that of Caltanissetta, to
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