17. Of Aenus in Thrace, joined with his brother Python in the assassination of Cotys, king of Thrace, B. C. 358, for which piece of good service, though prompted by private revenge, they were rewarded by the Athenians with the right of citizenship, and with crowns of gold. (Dem. c. Aristocr. p. 659, ed. Reiske; Arist. Pol. 5.10 ) According to Plutarch (ad v. Coloten. 32), they had both been disciples of Plato.