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 larger myth obliquely, which was already known to the audience in Athens at the time. The trilogy containing "Oedipus Rex" took second prize in the City Dionysia at its original performance. Aeschylus's nephew Philocles took first prize at that competition. However, in his "Poetics", Aristotle considered "Oedipus Rex" to be the tragedy which best matched his prescription for how drama should be made. Many modern critics agree with Aristotle on the quality of "Oedipus Rex", even if they don't always agree on the reasons. For example, Richard Claverhouse Jebb claimed that "The "Oedipus Tyrannus" is in one sense the masterpiece