Critias

Chambers's Encyclopaedia, Volume 3: Catarrh to Dion, p. 571

Critias, one of the pupils of Socrates, but unfortunately one who was rather a hearer than a doer of his word. On his return to Athens from banishment, he put himself at the head of the oligarchical party, and was afterwards the most rapacious and cruel among the thirty tyrants set up by the Spartans (404 B.C.). In the same year he fell at Munychia, resisting Thrasylbulus and the exiles. Critias had a high reputation as an orator, and besides wrote poetry.

Source scan(s): p. 0582