According to the Greek legend, Antigone was the daughter of Oedipus and Jocasta. After Oedipus left the throne his two sons, Eteocles and Polynices, agreed to rule Thebes in alternate years. At the end of his first year however Eteocles refused to step down. Polynices raised an army which he led against the city. He was defeated but not before he and his brother had killed each other in a duel. Their uncle Creon assumed power. He declared that Eteocles' body should be properly buried, but Polynices should be left unburied on the battlefield. Antigone decides to disobey, arguing that the law of man that violates a religious law is no law at all. She performs a ceremonial burial by sprinkling dust over her brother's body. She is apprehended by guards and Creon decrees that she herself will be buried by being sealed in a cave. Creon's son Haemon, however, is betrothed to Antigone and protests his father's sentence. Creon does not relent until the prophet Tiresias tells him the gods are angry with his treatment of Polynices. But it is too late; when the cave is opened to retrieve Antigone, she has already hung herself. Haemon tries to kill Creon but fails, and commits suicide instead. His mother, Eurydice, also kills herself on hearing what has happened.