It is now one of the 88 constellations defined by the International Astronomical Union. The constellation was also known as "Vultur volans" (the flying vulture) to the Romans, not to be confused with "Vultur cadens" which was their name for Lyra. It is often held to represent the eagle which held Zeus's/Jupiter's thunderbolts in Greco-Roman mythology. Aquila is also associated with the eagle that kidnapped Ganymede, a son of one of the kings of Troy (associated with Aquarius), to Mount Olympus to serve as cup-bearer to the gods.