Theogony who bore Persephone. The fifth wife of Zeus was another aunt, the Titan Mnemosyne, from whom came the nine Muses: Clio, Euterpe, Thalia, Melpomene, Terpsichore, Erato, Polymnia, Urania, and Calliope. His sixth wife was a third aunt, the Titan Leto, who gave birth to Apollo and Artemis. Zeus' seventh and final wife was his sister Hera, the mother by Zeus of Hebe, Ares, and Eileithyia. Zeus finally "gave birth" himself to Athena, from his head, which angered Hera so much that she produced, by herself, her own son Hephaestus, god of fire and blacksmiths. From Poseidon and the Nereid Amphitrite
Leto forward to explain the origin of the goddess and the meaning of her name. Older sources speculated that the name is related to the Greek λήθη "lḗthē" (lethe, oblivion) and λωτός "lotus" (the fruit that brings oblivion to those who eat it). It would thus mean "the hidden one". In 20th-century sources "Leto" is traditionally derived from Lycian "lada", "wife", as her earliest cult was centered in Lycia. Lycian "lada" may also be the origin of the Greek name Λήδα "Leda". Other scholars (Paul Kretschmer, Erich Bethe, Pierre Chantraine and R. S. P. Beekes) have suggested a Pre-Greek origin. According