Dionysius the Younger, tyrant of Syracuse, son of the preceding, succeeded him in 367 B.C. at the age of thirty; had never taken part in public affairs; was given over to vicious indulgences, and proved incapable of amendment, though Dion (q.v.) tried hard to reform him; was unpopular with the citizens, who with the help of Dion, whom he had banished, drove him from the throne; returning after 10 years, was once more expelled by Timoleon; betook himself to Corinth, where he associated himself with low people, and supported himself by keeping a school.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Dionysius the Elder * Dionysius of Alexandria