Herakles is an Athenian tragedy by Euripides that was first performed c. 416 BC. While Heracles is in the underworld obtaining Cerberus for one of his labours, his father Amphitryon, wife Megara, and children are sentenced to death in Thebes by Lycus. Heracles arrives in time to save them, though the goddesses Iris and Madness (personified) cause him to kill his wife and children in a frenzy. It is the second of two surviving tragedies by Euripides where the family of Heracles are suppliants. It was first performed at the City Dionysia festival.