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. 

Category:People in Greek mythology