Metropolitan City of Rome Capital is an area of local government at the level of metropolitan city in the Lazio region of Italy. It comprises the territory of the city of Rome and 120 other comuni in the hinterland of the city. With more than 4.3 million inhabitants, it is the largest metropolitan city in Italy. It was established on 1 January 2015 by the terms of Law 142/1990 and by Law 56/2014. It superseded the province of Rome.