Agamemnon was the leader of the Greek forces in the Trojan War. He was the brother-in-law of Helen of Troy. Agamemnon was married to Clytemnestra.
Agamemnon (son of King Atreus of Mycenae and Queen Aerope and the brother of Menelaus, famous for rallying the Greeks in the Trojan War, yet infamous for the sacrifice of his daughter Iphigenia at the commencement of the war)