Critias
Critias (; Ancient Greek: Κριτίας, Kritias; c. 460 – 403 BC) was an ancient Athenian poet, philosopher and political leader. He is known today for being a student of Socrates, a writer of some regard, and for becoming the leader of the Thirty Tyrants, who ruled Athens for several months after the conclusion of the Peloponnesian War in 404/403.