In Greek mythology, Jocasta was the daughter of Menoeceus, sister of Creaon and the wife of Laius the king of Thebes by whom she bore Oedipis. After unwittingly murdering Laius she unwittingly married and had incest with her son Oedipus, bringing a plague on Thebes, and bearing him two sons: Eteocles and Polynices and two daughters: Antigone and Ismene. Her father sacrificed himself to rid Thebes of the plague. Jocasta hanged herself when she learned the truth of her marriage to Oedipus. Research Jocasta