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Alcmaeon(ălkmē`ən), in Greek legend, son of Amphiaraüs and Eriphyle, a leader of the expedition of the EpigoniEpigoni
, in Greek legend, the sons of the Seven against Thebes, who avenged the death of their fathers. Under the leadership of Adrastus and Alcmaeon, the Epigoni conquered Thebes 10 years after the Seven had fought alongside Polynices for the throne of Thebes.
..... Click the link for more information. against Thebes. He murdered his mother in revenge for his father's death and consequently was haunted by the Erinyes until he found haven on Achelous' island. There he married Callirrhoë, daughter of Achelous, and lived in peace until his wife demanded the sacred robe and necklace of Harmonia, which were in the possession of his former wife Arsinoë. When he tried to regain them from Arsinoë, her brothers killed him.