Tragedy in Ovid's Metamorphoses common one throughout the world of ancient tragedy. This theme is most clearly illustrated in Aeschylus' great trilogy the Oresteia and in Sophocles' trilogy on Oedipus. As in Hecuba's speech, characters from the works of Aeschylus and Sophocles both lament their great losses and what has led them to this point. One of the best examples of this theme that Ovid so clearly draws upon is the speech given by a messenger in Oedipus Rex that tells of the death of Jocasta and the blinding of Oedipus. This famous speech follows in the same theme of that given by Hecuba,
Oedipus Rex of the Delphic Oracle. He visits Delphi to find out who his real parents are and assumes that the Oracle refuses to answer that question, offering instead an unrelated prophecy which forecasts patricide and incest. Oedipus's assumption is incorrect, the Oracle does, in a way, answer his question: "On closer analysis the oracle contains essential information which Oedipus seems to neglect." The wording of the Oracle: I was doomed to be murderer of the father that begot me refers to Oedipus' real, biological father. Likewise the mother with polluted children is defined as the biological one. The wording of the