Oedipus Rex as a tragedy is a typical classical one because it has the element of tragic setting, atmosphere and mood, tragic character with tragic hamartia, tragic plot design moving to tragic disintegration, and therefore the tragic realization by the character and audience.
In Greek mythology Oedipus, the king of Thebes who unwittingly killed his father and married his mother. Both Sophocles and Homer related that Oedipus's wife and mother hanged herself when the truth of their relationship became known, though Oedipus apparently continued to rule at Thebes until his death. Here is the Outline Story of Oedipus Rex
In “To Autumn,” the speaker’s experience of beauty refers back to earlier odes (the swallows recall the nightingale; the fruit recalls joy’s grape; the goddess drowsing among the poppies recalls Psyche and Cupid lying in the grass), but it also recalls a wealth of earlier poems.