Ganymede was Zeus's royal cupbearer.

He was once a mortal Trojan prince, but ended up captivating Zeus and become his lover. After Hebe left the role of Cupbearer of Olympus, Zeus put Ganymede in her place, to protect him from Hera's wreath, kidnapping him in the form of an eagle.

Ganymede is, also, the holder of the constellation of Aquarius.