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.
Europa (consort of Zeus) as "The Abduction of Europa" and "The Seduction of Europa", substituting the god Jupiter for Zeus. The myth of Europa and Zeus may have its origin in a sacred union between the Phoenician deities `Aštar and `Aštart (Astarte), in bovine form. Having given birth to three sons by Zeus, Europa married a king Asterios, this being also the name of the Minotaur and an epithet of Zeus, likely derived from the name "`Aštar". According to Herodotus' rationalizing approach, Europa was kidnapped by Greeks (probably Cretans) who were seeking to avenge the kidnapping of Io, a princess from Argos. His variant