"...all but two: those blood brother, one father, one mother--matched in rage, spears matched for the twin conquest--, clashed and won the common prize of death. (156-164)"
After the death of their father, Oedipus, Polynieces and Eteocles battle each other to get the throne. In order for Polynieces to get the throne, he makes an army to defeat his brother. Eventually, both brothers die in battle.
The new king of Thebes, Creon, issues that no one can attempt to bury Polyneices or they will face the punishment of death. He does this because Polynieces was a traitor to Thebes.
Polynieces, sister, Antigone decides to disregard Creon's doctrine, and gives him a proper burial. Antigone's sister Ismene confronts her and wants her to obey Creon so she won't suffer the consequences.
When Creon find out what Antigone has done, he sentences her to death. Haemon, who is Creon's son begs and quarrels with him to not kill her. Creon blames that Haemon's love for Antigone makes him a weaker person.
While Antigone is on her death march, she listens to her fate. She is put into a dungeon were she will die by Creon.
Tireisias visits Creon where he tells him his fate. Tiresias tells Creon the consequences and makes him