A Theban general, and leader of the "sacred band"; the friend of Epaminondas; contributed to the expulsion (379 B.C.) of the Spartans from the citadel of Thebes, of which they had taken possession in 380, after which he was elected to the chief magistracy; gained a victory over Alexander of Pherae the tyrant of Thessaly, but lost his life in 362 while too eagerly pursuing the foe.