Seven Against Thebes by Aeschylus
The Seven against Thebes (Greek: Ἑπτά ἐπί Θήβας, Hepta epi Thēbas) is the third play in an Oedipus-themed trilogy produced by Aeschylus in 467 BC. It concerns the battle between an Argive army led by Polynices and the army of Thebes led by Eteocles and his supporters. The trilogy won the first prize at the City Dionysia. Its first two plays, Laius and Oedipus as well as the satyr play Sphinx are no longer extant.