Critias ordering the execution of Theramenes, 404 BC. After the fall of Athens to the Spartans, Critias, as one of the Thirty Tyrants, blacklisted many of its citizens. Most of his prisoners were executed and their wealth confiscated. Critias, c. 460 - 403 BC. Athenian political figure and author. Theramenes, died 404 BC. Athenian statesman. From Hutchinson's History of the Nations, published 1915.