Leda – according to the most familiar tradition, Zeus,
who had fell in love with Leda, changed himself into a swan in order to
unite with her. Leda put 2 eggs, from which emerged Dioscuri
and Helen, the future Helen of Troy.
See: François Boucher. Leda and the Swan.
Paul Cézanne. Leda with Swan.
Correggio Leda and Swan.
Leonardo da Vinci Leda and Swan.
Henri Matisse. Leda and the Swan.
Jacopo Robusti, called Tintoretto. Leda and the Swan. Leda and the Swan.