Frosinone is a town and comune in Lazio, central italy, the administrative seat of the Province of Frosinone. It is located about 75 km south-east of rome close to the Rome-Naples Autostrada A1. It is commonly identified as the capital of the geographical region of Ciociaria. Frosinone is located on a hill overlooking the valley of the Sacco River, and is surrounded by the Ernici and Lepini mountain ranges. East of Frosinone lies an early gothic Cistercian cloister.