Ganymede is the young, beautiful boy that became one of Zeus’ lovers. One source of the myth says that Zeus fell in love with Ganymede when he spotted him herding his flock on Mount Ida. Zeus then came down in the form of an eagle or sent an eagle to carry Ganymede to Mount Olympus where Ganymede became cupbearer to the gods. According to other accounts, Eos kidnapped Ganymede, to be her lover, at the same time she kidnapped Tithonus. Zeus then robbed Eos of Ganymede, in return granting Eos the wish that Tithonus be immortal. Unthinkingly, Eos forgot to ask that Tithonus remain youthful. Everyday, the faithful Eos watched over Tithonus, until one day she locked him in a room and left him to get old by himself.
When Ganymede’s father, King Tros of Troy or Laomedon, found out about Ganymede’s disappearance, he grieved so hard that Zeus sent Hermes on his behalf to give Tros or Laomedon two storm footed horses. In other accounts, Zeus gave Tros a golden vine and two swift horses that could run over water. Hermes was also ordered to assure the bereaved father that Ganymede was and would be immortal. Later, Heracles asked for the two beautiful horses in exchange for destroying the sea monster sent by Poseidon to besiege the city of Troy. Tros agreed and Heracles became the owner of the bribe sent by Zeus to Tros.
Upon hearing that Ganymede was to be cup bearer as well as Zeus’ lover, the infinitely jealous Hera was outraged. Therefore Zeus set Ganymede’s image among the stars as the constellation Aquarius, the water carrier. Aquarius was originally the Egyptian god over the Nile.