A pupil of Plato, and an austere man; was from his austerity obnoxious to his pleasure-loving nephew, Dionysius the Younger; subjected to banishment; went to Athens; learned his estates had been confiscated, and his wife given to another; took up arms, drove his nephew from the throne, usurped his place, and was assassinated in 353 B.C., the citizens finding that in getting rid of one tyrant they had but saddled themselves with another, and greater.