Although granted the kingdom by Mark Antony, Archelaus retained his crown by making peace with Octavian (later Augustus) after Antony's defeat at the Battle of Actium (31 BC). In 20 BC Cilicia Trachea, eastern Lycaonia, and Armenia Minor were added to his domain, and his marriage to King Polemo's widow gave him indirect control of most of Pontus. When Tiberius succeeded Augustus (AD 14), Archelaus was summoned to Rome, accused in the Senate, and soon deprived of his throne. He died soon after. In AD 17 Cappadocia was made a Roman province.