Oedipus Rex and that deal with the story of Oedipus, "Oedipus Rex" was the second to be written. However, in terms of the chronology of events that the plays describe, it comes first, followed by "Oedipus at Colonus" and then "Antigone". Prior to the start of "Oedipus Rex", Oedipus has become the king of Thebes while unwittingly fulfilling a prophecy that he would kill his father, Laius (the previous king), and marry his mother, Jocasta (whom Oedipus took as his queen after solving the riddle of the Sphinx). The action of Sophocles' play concerns Oedipus' search for the murderer of Laius in
Oedipus rex (opera) bandits at the crossing of three roads. This frightens Oedipus further: he recalls killing an old man at a crossroads before coming to Thebes. A messenger arrives: King Polybus of Corinth, whom Oedipus believes to be his father, has died. However, it is now revealed that Polybus was only the foster-father of Oedipus, who had been, in fact, a foundling. An ancient shepherd arrives: it was he who had found the child Oedipus in the mountains. Jocasta, realizing the truth, flees. At last, the messenger and shepherd state the truth openly: Oedipus is the child of Laius and Jocasta, killer