Oedipus guards. Oedipus goes on to defeat the Sphinx by solving a riddle to become king. He marries the widowed Queen Jocasta, unaware that she is his mother. A plague falls on the people of Thebes. Upon discovering the truth, Oedipus blinds himself, and Jocasta hangs herself. After Oedipus is no longer king, Oedipus' brother-sons kill each other. Some differences with older stories emerge. The curse of the Oedipus' sons is expanded backward to include Oedipus and his father, Laius. Oedipus now steps down from the throne instead of dying in battle. Additionally, rather than his children being by a second
Laius raped the king's son, Chrysippus, and carried him off to Thebes while teaching him how to drive a chariot, or as Hyginus records it, during the Nemean games. This abduction is thought to be the subject of one of the lost tragedies of Euripides. With both Amphion and Zethus having died in his absence, Laius became king of Thebes upon his return. After the rape of Chrysippus, Laius married Jocasta or Epicasta, the daughter of Menoeceus, a descendant of the Spartoi. Laius received an oracle from Delphi which told him that he must not have a child, or the child