In 480 BC, Croton sent a ship in support of the Greeks at the Battle of Salamis (Herodotus 8.47), but the victory of Locri and Rhegium over Croton in the same year marked the beginning of its decline. It was replaced by Heraclea as headquarters of the Italiote League. Dionysius, the tyrant of Syracuse, aiming at hegemony in Magna Graecia, captured Croton in 379 BC and held it for twelve years. Croton was then occupied by the Bruttii, with the exception of the citadel, in which the chief inhabitants had taken refuge; these soon after surrendered, and were allowed to withdraw to Locri.