Pelopidas (5.2-5.3)

Therefore Archias, Leontidas, and Philip, men of the oligarchical faction who were rich and immoderately ambitious, sought to persuade Phoebidas the Spartan, as he was marching past with an army, to take the Cadmeia by surprise, expel from the city the party opposed to them, and bring the government into subserviency to the Lacedaemonians by putting it in the hands of a few men.

Phoebidas yielded to their persuasions, made his attack upon the Thebans when they did not expect it, since it was the festival of the Thesmophoria, and got possession of the citadel.[*] Then Ismenias was arrested, carried to Sparta, and after a little while put to death; while Pelopidas, Pherenicus, Androcleides and many others took to flight and were proclaimed outlaws. Epaminondas, however, was suffered to remain in the city, because his philosophy made him to be looked down upon as a recluse, and his poverty as impotent.