Leda. In Greek mythology, Leda was an Aetolian princess who became a Spartan queen.
Her myth gave rise to the popular motif in Renaissance and later art of Leda and the Swan. Leda was the daughter of the Aetolian King Thestius hence she was also called Thestias.
Her mother was either Leucippe, Deidameia, daughter of Perieres, Eurythemis, daughter of Cleoboea, or Laophonte, daughter of Pleuron. According to Alcman, Leda's parents were Glaucus and Laophonte while Eumelus attested that they are Sisyphus and Panteiduia or Paneidyia.
She married king Tyndareus of Sparta and by him became the mother of Helen of Troy, Clytemnestra, and Castor and Pollux. Leda also had three other daughters by Tyndareus: Timandra, Phoebe, and Philonoe.
Leda was admired by Zeus, who raped her in the guise of a swan. As a swan, Zeus fell into her arms for protection from a pursuing eagle. Their consummation, on the same night as Leda lay with her husband Tyndareus, resulted in two eggs from which hatched Helen, Clytemnestra, and Castor and Pollux. Which children are the progeny of Tyndareus the mortal king, and which are of Zeus and thus half-immortal, is not consistent among accounts, nor is which child hatched from which egg. The split is almost always half mortal, half divine, although the pairings do not always reflect the children's heritage pairings. Castor and Pollux are sometimes both mortal, sometimes