The Epigoni (Ancient Greek: Ἐπίγονοι, Epigonoi, "progeny") is an ancient Greek tragedy written by the Greek playwright Sophocles in the 5th century BC and based on Greek mythology. According to myth, Polynices and the Seven against Thebes attacked Thebes because Polynices' brother, Eteocles, refused to give up the throne as promised. All but one (Adrastus) of the seven would-be conquerors were killed. Their children swore vengeance and attacked Thebes. This was called the war of the Epigonoi ("the offspring, the next generation"); the story had been told, before Sophocles, in the lost epic Epigonoi. These Epigonoi defeated and killed (or drove out) Laodamas, son of Eteocles, and conquered Thebes, installing Thersander on the throne. All of the Epigonoi but Aegialeus, the son of Adrastus, o