Frosinone (Italian: [froziˈnoːne] ; local dialect: Frusenone) is a comune (municipality) in the Italian region of Lazio, administrative seat of the province of Frosinone. It is about 75 kilometres (47 mi) southeast of Rome, close to the Rome-Naples A1 Motorway. The city is the main city of the Valle Latina ("Latin Valley"), an Italian geographical and historical region that extends from south of Rome to Cassino.
Until the 19th century, it was a village with a rural vocation, while from the 20th century, it became an important industrial and commercial centre. Traditionally considered a Volscian city, with the name of Frusna and then the Roman of Latium adiectum as Frùsino, over the course of its millenary history it has been subjected to multiple devastations caused by its geostrategic position. As a consequence of this, as well as of destruction due to seismic events (the most ruinous of which occurred in September 1349), it retains only rare, albeit significant, traces of its past.
