The Battle of the Volturnus, also known as the Battle of Casilinum or Battle of Capua, was fought in 554 near the Volturno River between an army of the Byzantine Empire and a combined force of Franks
Compsa was an ancient city of the Hirpini, near the sources of the Aufidus, on the boundary of Lucania and not far from that of Apulia, on a ridge 609 m above sea level. It was betrayed to Hannibal in