From his unholy marriage to his mother Iokaste, Oedipus had four children: two boys, Eteocles and Polynekes and two girls, Antigone and Ismene.
After the departure of Oedipus un self-exile in mountain Kithairon, his two sons agreed to rule in Thebes in periods of one year each. Eteocles broke the agreement and refused to hand over the power to his brother Polynekes, who raged, leaves Theabes and goes to Argos, where he gets married to the daughter of Adrastos, King of Argos. After a while Polynekes with the army of Argos arrives in Thebes in order to start a war.The two brothers fight and kill each other and the war ends.
New King becomes Kreon, who commands that the body of Polynekes should not be burried but left to be eaten by dogs and vultures, for he prooved to be an enemy of the city, when the body of Eteocles was burried properly as a city hero.
Antigone does not obey and burries the body of her brother, even though her sister Ismene refuses to help her, fearing Kreon. As soon as Kreon finds out, what Antigone had done, he had her arrested and burried her alive, in order to punish her in that cruel way.
Aimon, Kreon's son and also Antigone's husband to be, begs his father to let her live. Kreon refuses to do him the favour and Aimon kills himself with a sword. When Euridice, Kreon's wife heard the news, she killed herself too.
Kreon at the end mourns the death of the two members of his family.