Helen of Troy refuge with Leda. The swan gained her affection, and the two mated. Leda then produced an egg, from which Helen emerged. The First Vatican Mythographer introduces the notion that two eggs came from the union: one containing Castor and Pollux; one with Helen and Clytemnestra. Nevertheless, the same author earlier states that Helen, Castor and Pollux were produced from a single egg. Pseudo-Apollodorus states that Leda had intercourse with both Zeus and Tyndareus the night she conceived Helen. On the other hand, in the "Cypria", part of the Epic Cycle, Helen was the daughter of Zeus and the goddess Nemesis.
Leda and the Swan on the ground with her children. In 1508 he painted a different composition of the subject, with a nude standing Leda cuddling the Swan, with the two sets of infant twins (also nude), and their huge broken egg-shells. The original of this is lost, probably deliberately destroyed, and was last recorded in the French royal Château de Fontainebleau in 1625 by Cassiano dal Pozzo. However it is known from many copies, of which the earliest are probably the "Spiridon Leda", perhaps by a studio assistant and now in the Uffizi, and the one at Wilton House in England (illustrated). Also