Ptolemy III, surnamed Euergetes, eldest son and successor of the preceding, by ArsinoŽ, daughter of Lysimachus, died in 222 B. C. On coming to the throne he found in the public treasury an immense amount of money, and at his command a vast army and navy. His warlike ardor was roused by the ill treatment and subsequent murder of his sister Berenice, wife of Antiochus Theos, king of Syria. With a large army he ravaged Syria and its eastern provinces, advancing as far as Susa, and, without establishing his authority in any new possessions, brought back immense booty in gold and silver, and the Egyptian idols which Cam-byses had carried off to Persia. For this the Egyptians called him Euergetes (benefactor). In right of his wife Berenice, daughter of Magas, Cyrene was united to his dominions, and he made large acquisitions of territory in Arabia and Abyssinia. He inherited the religious liberality and love of learning of his progenitors, and was like them a proficient in letters.