Via Wikipedia (links in the original): “Paris, a Trojan prince, came to Sparta to claim Helen, in the guise of a supposed diplomatic mission. Before this journey, Paris had been appointed by Zeus to judge the most beautiful goddess; Hera, Athena, or Aphrodite. In order to earn his favour, Aphrodite promised Paris the most beautiful woman in the world. Swayed by Aphrodite’s offer, Paris chose her as the most beautiful of the goddesses, earning the wrath of Athena and Hera. Although Helen is sometimes depicted as being raped (i.e. abducted) by Paris, Ancient Greek sources are often elliptical and contradictory.” See also: Judgement of Paris.