Shortly after the catastrophe of Cleomenes, the governor of Coele-Syria, who was an Aetolian by birth, resolved to hold treasonable parley with Antiochus and put the cities of that province into his hands. He was induced to take this step partly by the contempt with which Ptolemy’s shameful debauchery and general conduct had inspired him; and partly by distrust of the king’s ministers, which he had learned to entertain in the course of the recent attempt of Antiochus upon Coele-Syria: for in that campaign he had rendered signal service to Ptolemy, and yet, far from receiving any thanks for it, he had been summoned to Alexandria and barely escaped losing his life. The advances which he now made to Antiochus were gladly received, and the affair was soon in the course of being rapidly completed. But I must make my readers acquainted with the position of the royal family of Syria as I have already done with that of Egypt; and in order to do so, I will go back to the succession of Antiochus to the throne, and give a summary of events from that point to the beginning of the war of which I am to speak. Antiochus was the younger son of Seleucus Callinicus; and on the death of his father, and the succession in right of seniority of his brother Seleucus to the throne, he at first removed to upper Asia and lived there. But Seleucus having been treacherously assassinated after crossing Mount Taurus with his army, as I have already related, he succeeded to the throne himself; and made Achaeus governor of Asia on this side Taurus, Molon and his brother Alexander guardians of his dominions in upper Asia,—Molon acting as Satrap of Media, his brother of Persia.