Helen and Polydeuces. Yes, that's the famously beautiful Helen of Troy, who inadvertently started the Trojan War when kidnaped by Paris. The Greeks told more than one version of Zeus as ardent swan. A second account claims the problematic goddess  Nemesis as the mother of Helen. The goddess of retribution morphed into a goose, gambling a hapless bid to fool Zeus. The unfooled Zeus became a swan, and deaf to the poor goddess's objections, shamelessly did