In Greek mythology, Polynices was the son of Oedipus and either Jocasta or Euryganeia and the older brother of Eteocles. When Oedipus was discovered to have killed his father and married his mother, Oedipus was expelled from Thebes, leaving Eteocles and Polynices to rule. Because of a curse put on them by their father, the two sons did not share the rule peacefully. During a battle for control over Thebes, the brothers killed each other.

Oedipus was a mythical Greek king of Thebes. A tragic hero in Greek mythology, Oedipus fulfilled a prophecy that he would end up killing his father and marrying his mother, thereby bringing disaster to his city and family.