On the death of Arybbas, Alexander of Epirus succeeded to the throne and the title King of Epirus in 334 BC. He invaded Italy, but was killed in battle by a Lucanian in the Battle of Pandosia against several Italic tribes 331 BC. Aeacides of Epirus, who succeeded Alexander, espoused the cause of Olympias against Cassander, but was dethroned in 313 BC. His son Pyrrhus came to throne in 295 BC, and for six years fought against the Romans and Carthaginians in southern Italy and Sicily. The high cost of his victories against the Romans gave Epirus a new, but brief, importance, as well as a lasting contribution to the Greek language with the concept of a "Pyrrhic victory". Pyrrhus nonetheless brought great prosperity to Epirus, building the great theater of Dodona and a new suburb at Ambracia (now modern Arta), which he made his capital.