Leda was the daughter of Thestius and the wife of Tyndareus. She
has been known as the Queen of Sparta. Leda was seduced by Zeus when
he came to her in the form of a swan. Leda gave birth to an egg.
From it hatched the twins Castor and Pollux. With Zeus she also
had Helen of Troy and with Tyndareus she had Clytemnestra.