CORIOLI, an ancient Latin city, celebrated as giving a surname to the Roman C. Marcius. Corioli is first mentioned in Roman history as falling into the hands of the Volsci, and being retaken from them by the Romans, B.C. 493. When Coriolanus made common cause with the Volsci against his countrymen, this city was one of the first that yielded to his victorious arms. It was never a very large or important place, and seems to have dropped out of existence before the close of the fifth century B.C. The site of Corioli is now unknown. Some geographers have assigned it to the hill called Monte Giove about nineteen miles from Rome on the way to Antium. Others have suggested a hill four miles nearer Antium as a more plausible locality.