A fortified city in Campania, on the Volturno, 27 m. N. of Naples, where, or rather near which, in a place of the same name, Hannibal, at the invitation of the citizens, retired with his army to spend the winter after the battle of Cannae, 216 B.C., and where, from the luxurious life they led, his soldiers were enervated, after which it was taken by the Romans, destroyed by the Saracens in 840, and the modern city built in its stead.