Wife of Oedipus. Also, mother of Oedipus. When the play begins, she no longer believes in the prophecies of seers. She tries to convince Oedipus not to worry about what Tiresias says. As more evidence points toward the probability that Oedipus has in fact fulfilled a terrible prophecy, she begs him not to dig any further into his past. He will not be persuaded. Realizing that her son killed her first husband, that she is now married to her son, and that Oedipus is about to bring all of this to light, Jocasta takes her own life.