Leda

Leda is a person in Greek mythology. She was the daughter of a king, and the wife of King Tyndareos of Sparta.

Zeus seduced her as a swan, and Leda laid two eggs. When they hatched, her children Helen, Klytaimnestra, Castor and Pollux) came out. Helen was a child of Zeus, and the myths vary on who was the father of the others.