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.
Troy (horse) career, Troy proved particularly successful as a sire of fillies and broodmares. He sired Helen Street, winner of the 1985 Irish Oaks and France's Prix du Calvados: Helen Street produced Street Cry, the sire of 2007 Kentucky Derby winner Street Sense. By another daughter, Sheer Audacity, Troy was also the damsire of the 1999 Epsom Derby winner, Oath. Troy also sired Walensee, who raced in France and won the 1985 Prix Vermeille and was voted that country's Champion 3-Year-Old Filly. She was the dam of Westerner, the 2004 and 2005 European Champion Stayer. Through another daughter, Cocotte, Troy was the