1.6.5
For a time Antigonus pre pared for war, and was by no means confident of the issue; but on learning that the revolt of Cyrene had called Ptolemy to Libya, he immediately reduced the Syrians and Phoenicians by a sudden inroad, handed them over to Demetrius, his son, a man who for all his youth had already a reputation for good sense, and went down to the Hellespont. But he led his army back without crossing, on hearing that Demetrius had been overcome by Ptolemy in battle. But Demetrius had not altogether evacuated the country before Ptolemy, and having surprised a body of Egyptians, killed a few of them. Then on the arrival of Antigonus Ptolemy did not wait for him but returned to Egypt.
1.6.6
When the winter was over, Demetrius sailed to Cyprus and overcame in a naval action Menelaus, the satrap of Ptolemy, and afterwards Ptolemy him self, who had crossed to bring help. Ptolemy fled to Egypt, where he was besieged by Antigonus on land and by Demetrius with a fleet. In spite of his extreme peril Ptolemy saved his empire by making a stand with an army at Pelusium while offering resistance with warships from the river. Antigonus now abandoned all hope of reducing Egypt in the circumstances, and dispatched Demetrius against the Rhodians with a fleet and a large army, hoping, if the island were won, to use it as a base against the Egyptians. But the Rhodians displayed daring and ingenuity in the face of the besiegers, while Ptolemy helped them with all the forces he could muster.
1.6.7
Antigonus thus failed to reduce Egypt or, later, Rhodes, and shortly afterwards he offered battle to Lysimachus, and to Cassander and the army of Seleucus, lost most of his forces, and was himself killed, having suffered most by reason of the length of the war with Eumenes. Of the kings who put down Antigonus I hold that the most wicked was Cassander, who although he had recovered the throne of Macedonia with the aid of Antigonus, nevertheless came to fight against a benefactor.
1.6.8
After the death of Antigonus, Ptolemy again reduced the Syrians and Cyprus, and also restored Pyrrhus to Thesprotia on the mainland. Cyrene rebelled; but Magas, the son of Berenice (who was at this time married to Ptolemy) captured Cyrene in the fifth year of the rebellion. If this Ptolemy really was the son of Philip, son of Amyntas, he must have inherited from his father his passion for women, for, while wedded to Eurydice, the daughter of Antipater, although he had children he took a fancy to Berenice, whom Antipater had sent to Egypt with Eurydice. He fell in love with this woman and had children by her, and when his end drew near he left the kingdom of Egypt to Ptolemy (from whom the Athenians name their tribe) being the son of Berenice and not of the daughter of Antipater.
ch. 7
1.7.1
This Ptolemy fell in love with Arsinoe, his full sister, and married her, violating herein Macedonian custom, but following that of his Egyptian subjects. Secondly he put to death his brother Argaeus, who was, it is said, plotting against him; and he it was who brought down from Memphis the corpse of Alexander. He put to death another brother also, son of Eurydice, on discovering that he was creating disaffection among the Cyprians. Then Magas, the half-brother of Ptolemy, who had been entrusted with the governorship of Cyrene by his mother Berenice—she had borne him to Philip, a Macedonians but of no note and of lowly origin—induced the people of Cyrene to revolt from Ptolemy and marched against Egypt.
1.7.2
Ptolemy fortified the entrance into Egypt and awaited the attack of the Cyrenians. But while on the march Magas was in formed that the Marmaridae,a tribe of Libyan nomads, had revolted, and thereupon fell back upon Cyrene. Ptolemy resolved to pursue, but was checked owing to the following circumstance. When he was preparing to meet the attack of Magas, he engaged mercenaries, including some four thousand Gauls. Discovering that they were plotting to seize Egypt, he led them through the river to a deserted island. There they perished at one another's hands or by famine.
