 Dion of Syracuse was a disciple of Plato.He overthrew the tyrant Dionysius II of Syracuse and was installed as leader in the city, only to be made to leave by the Syracusans who were unhappy with his opposition to democratic reforms.He was later re-invited to the city, where he attempted to establish an aristocracy along Platonic lines, but he was assassinated by plotters in the pay of the former tyrant.