Oepidus is a typo. The correct spelling is Oedipus.
When he was born, it was prophesized that Oedipus would grow to murder his
father, and marry his mother.
When he grew up, he learned about his destiny, but belived that his ADOPTED parrents were his biological parrents.
Eventually, he ran into his
real father and after a dispute killed him. However, Oedipus was able to save the city of Tebes from sphynx and was offered his mother's hand in marrige.