Theramenes

The son of Hagnon and, most notably, one of the Thirty Tyrants elected to rule the city of Athens after the end of the Peloponnesian War (431-404 BCE).

Having lost the war to the Spartans, the citizens of Athens elected thirty men to lead the new post-war government; these men became known as the Thirty Tyrants; the short lived government they comprised was an oligarchy.

The tyrants immediately began to prosecute Athenians who had been Spartan informers and collaborators during the long, hard war; the punishment of the guilty seemed appropriate to the common citizens and aristocrats alike but it soon became clear that the executions and banishments were going beyond the bounds of necessity or prudence; open hostilities soon developed between members of the Thirty and their authority and rule came to an end after one year.

Theramenes and Kritias became the two most outspoken tyrants and they clashed openly over matters of public policy; Kritias clearly had the support of the other tyrants and Theramenes stood alone in his call for restraint in the punishment of citizens and aristocrats who were accused of collaborating with the Spartans during the Peloponnesian War.

The conflict between Theramenes and the other tyrants was a deciding issue in the collapse of the oligarchy; in his criticism of Theramenes, Kritias called him a political buskin, i.e. a man willing to accommodate any personally advantageous political ideas.

• Hellenica, book 2, chapter 3