IG 2. 65 b), the Odrysian king (i.e. he ruled in Thrace), son of Cotys I. Cersobleptes found himself, when he came to the throne in 360 bc, engaged in a war, which he had inherited from his father, with Athens, and with two pretenders to the throne, Berisades and Amadocus. Charidemus, the Athenian general, married Cersobleptes' sister, and continued to advise him, as he had done his father. In 359 bc the Athenian commander, Cephisodotus, was forced to make a treaty with Cersobleptes, which the Athenians repudiated. In the following year, Berisades and Amadocus joined forces, and, with Athenian help, forced Cersobleptes to sign a treaty dividing the kingdom of Cotys between the three princes, the Thracian Chersonese being ceded to Athens; Cersobleptes' share seems to have been the eastern part, Cypsela, Cardia, and the Propontis. Charidemus, however, persuaded Cersobleptes to renounce the treaty, and it was not till 357 that he was forced by the Athenian commander, Chares, to surrender the Chersonese, and agree to the partition of Thrace. In the following years Philip II of Macedon proposed an alliance with Cersobleptes for the expulsion of the Athenians from the Chersonese, but nothing came of it. Meanwhile, through the agency of Charidemus, Athens secured Cersobleptes' goodwill, while his rival Amadocus (Berisades was now dead) turned to Philip. Philip invaded Thrace, and it was only his severe illness that prevented its subjection. In the peace of 346 bc between Athens and Philip, Cersobleptes was not included. The last war between Philip and Cersobleptes took place in 342 bc, and in that year or the next the Odrysian kingdom passed into the control of Macedonia. His name is inscribed on a silver vessel from Rogozen (Bulgaria).
James Maxwell Ross Cormack; Simon Hornblower
Subjects: Classical Studies.