FORCES OF ANTIGONUS IN GREECE. 371 Boeotia, and Phokis. Chalkis in Euboea was at this time the chief military station of Kassander ; Thebes (which he had re- cently re-established) was in alliance with him ; but the remain- ing Boeotian towns were hostile to him, Ptolemy, having taken Chalkis — the citizens of which he conciliated by leaving them without any garrison — together with Oropus, Eretria, and Ka- rystus — entered Attica and presented himself before Athens. So much disposition to treat with him was manifested in the city, that Demetrius the Phalerean was obliged to gain time by pre- tending to open negotiations with Antigonus, while Ptolemy withdrew from Attica. Nearly at the same epoch, ApoUonia, Epidamnus, and Leukas, found means, assisted by an armament from Korkyra, to drive out Kassander's garrisons, and to escape from his dominion.^ The affairs of Antigonus were now pros- pering in Greece, but they were much thrown back by the dis • content and treachery of his admiral Telesphorus, who seized Elis and even plundered the sacred treasures of Olympia. Ptolemy presently put him down, and restored these treasures to the god.^ In the ensuing year, a convention was concluded between An- tigonus, on one side — and Kassander, Ptolemy (the Egyptian) and Lysimachus, on the other, whereby the supreme command in Macedonia was guaranteed to Kassander, until the maturity of Alexander son of Eoxana ; Thrace being at the same time assured to Lysimachus, Egypt to Ptolemy, and the whole of Asia to Antigonus. It was at the same time covenanted by all, that the Hellenic cities should be free.3 Towards the execution of this last clause, however, nothing was actually done. Nor does it appear that the treaty had any other effect, except to inspire Kassander with increased jealousy about Roxana and her child ; both of whom (as has been already stated) he caused to be se- cretly assassinated soon afterwards, by the governor Glaukias, in the fortress of Amphipolis, where they had been confined.* The forces of Antigonus, under his general Ptolemy, still remained m Greece. But this general presently (310 b. c.) revolted from 1 Diodor. xix. 77, "8, 89. * Diodor. xix. 87. ' Diodor. xix. 105 • Diodor. xix. 105.