Mnemosyne — Classical Greek Myth Library

Dionysus, son of Zeus and the Theban princess Semele (daughter of Cadmus), returns in mortal disguise to Thebes—his birthplace—to establish his rites. Semele’s sisters (Agave, Autonoe, Ino) had denied that Zeus was her lover, claiming her death by thunderbolt was punishment for a lie. Cadmus has abdicated; young Pentheus, son of Agave and Echion (one of the Spartoi), rules and forbids the new god’s worship as foreign madness and a threat to civic order. The women of Thebes, including Agave and her sisters, are driven in frenzy to Mount Cithaeron as bacchants. Dionysus’s Asian thiasos sings his myths. Pentheus arrests the “Lydian stranger” (Dionysus himself); the god wrecks the palace prison with earthquake and fire and calmly reappears. He lures Pentheus—curious, voyeuristic, and increasingly unhinged—into dressing as a woman to spy on the maenads. On Cithaeron the god reveals the king to the possessed women. Agave, mad, takes her son for a mountain lion or wild beast; she and the bacchants tear Pentheus apart (sparagmos). She carries his head back to Thebes as a trophy, still raving, until Cadmus leads her to recognition and unbearable grief. Dionysus pronounces exile and metamorphosis on the royal house (Cadmus and Harmonia to serpent form and distant lands, in Apollodorus; further dooms on the sisters). The play and the myth establish Dionysus as a Theban-born god who will not be refused in his own city: resistance becomes blasphemy, and the king who polices the cult becomes the cult’s sacrificial victim. Within the catalogue’s Theban cycle this story stands beside the Labdacid tragedies as the other great Theban catastrophe—Cadmeid blood destroyed not by Oedipus’s curse alone but by denial of Semele’s divine son.