Plutarch Demetrius 39

[1] As for Demetrius, after Macedonia he became master of Thessaly also. And now that he had most of Peloponnesus, and, on this side the Isthmus, Megara and Athens, he turned his arms against the Boeotians. These at first made friendly agreements with him on reasonable terms; afterwards, however, when Cleonymus the Spartan made his way into Thebes with an army, the Boeotians were lifted up in spirit, and since at the same time Pisis of Thespiae, who was their leading man at this time in reputation and influence, added his instigations to the step, they revolted.

[2] But when Demetrius brought up his engines-of-war against Thebes and laid siege to the city, Cleonymus took fright and stole away, and the Boeotians, in terror, surrendered. ¹ Demetrius put garrisons in their cities, exacted large sums of money from them, and left as their overseer and governor Hieronymus the historian, thereby getting a reputation for clemency, and particularly by his treatment of Pisis. For after capturing him Demetrius did him no harm, but actually greeted him, showed him kindness, and appointed him polemarch in Thespiae.

[3] Not long afterwards, however, Lysimachus was taken prisoner by Dromichaetes, and in view of this Demetrius set out with all speed for Thrace, thinking to occupy a region destitute of defenders. Thereupon the Boeotians revolted again, and at the same time word was brought that Lysimachus had been set free. Quickly, therefore, and in wrath, Demetrius turned back, and finding that the Boeotians had been defeated in battle by his son Antigonus, once more laid siege to Thebes.