It's unknown in the play 'Antigone' whether Eteocles and Polyneices are twins. They're described just as brothers. But they in fact are twins according to other information sources. The brothers start out as friendly power-sharing monarchs over the city of Thebes. They end up killing each other in the battle between Argos and Thebes.
3: Polynices, Eteocles, Ismene
Antigone, Ismene, Eteocles, and Polynices
In Greek mythology she was the mother of Oedipus by Laius. After Oedipus killed Laius and married her she was the mother of Antigone, Eteocles, Polynices and Ismene by Oedipus. Of these, only Eteocles and Polynices were male.
Eteocles, Polynices, Antigone, and Ismene were the children of Oedipus and Jocasta.
Oedipus and Jocasta had two sons, Polynices and Eteocles and two daughters, Antigone and Ismene.
Eteocles and Polynices.
3: Polynices, Eteocles, Ismene
Antigone, Ismene, Eteocles, and Polynices
In Greek mythology she was the mother of Oedipus by Laius. After Oedipus killed Laius and married her she was the mother of Antigone, Eteocles, Polynices and Ismene by Oedipus. Of these, only Eteocles and Polynices were male.
He was killed by Eteocles in the battle of the Seven Against Thebes.
He defends Thebes against Polynices and his followers.
Oedipus repeats to Polynices the curse that Polynices and Eteocles, who are brothers, will kill each other in battle. The curse was put upon them by Oedipus, who is their father.
Polynices, Capaneus, Hippomedon, Parthenopaeus, Tydeus, Adrastus, Amphiaraus. They were the group that Polynices assembled to attack Thebes against Eteocles's kingship.
Eteocles, Polynices, Antigone, and Ismene were the children of Oedipus and Jocasta.
Oedipus and Jocasta had two sons, Polynices and Eteocles and two daughters, Antigone and Ismene.
Antigone believed her brother, Polynices, should have been buried and honored just at Eteocles had been. Creon believed that Polynices was a traitor for attacking Thebes and therefor left him to rot in the field. He also sent out a decree that no one was to bury him.
He is son to Creon and Eurydice and brother to Haemon. He does not appear in Antigone because he died during the struggle between Polynices and Eteocles.