In Greek mythology, Tiresias was a blind prophet of Apollo in Thebes, famous for clairvoyance and for being transformed into a woman for seven years. He was the son of the shepherd Everes and the nymph Chariclo. Tiresias participated fully in seven generations in Thebes, beginning as advisor to Cadmus himself.
Pietro della Vecchia, Tiresias transformed into a woman, 17th century.
Tiresias appears to Odysseus during the nekyia of Odyssey xi, in this watercolor with tempera by the Anglo-Swiss Johann Heinrich Füssli, c. 1780–85.