History of the Peloponnesian War

In former generations there was an Athenian of the name of Cylon, a victor at the Olympic games, of good birth and powerful position, who had married a daughter of Theagenes, a Megarian, at that time tyrant of Megara.

Now this Cylon was inquiring at Delphi; when he was told by the god to seize the Acropolis of Athens on the grand festival of Zeus.