Cleon( 422 BC)

Most unpopular by the writers of his time, Cleon has been portrayed as a violent general and grim political leader in Athens.

Fiercly satirized by Aristophanes, he was responsible for the expulsion of Thycydides, and he is said to have insisted on the execution of the people of Mytilene after their revolt.

Cleon did win glorious victories over the Spartans though, and he was in favour with Pericles after exposing the fact that Athen's funds were being maladministrated.
Cleon was killed in the battle of Amphipolis against the Spartans, where their leader Brasidas was also killed.