Dionysus was the son of Zeus and Semele, a daughter of Cadmus (king of Thebes). Out of jealousy, Hera, the wife of Zeus, persuaded the pregnant Semele to prove her lover’s divinity by requesting that he appear in his real person. Zeus complied, but his power was too great for the mortal Semele, who was blasted with thunderbolts. However, Zeus saved his son by sewing him up in his thigh and keeping him there until he reached maturity, so that he was twice born. Dionysus was then conveyed by the god Hermes to be brought up by the bacchantes (maenads, or thyiads) of Nysa, a purely imaginary spot.