Pegasus
Generation VI · Winged horse of the heavens
The white winged stallion Pegasus leapt fully formed from Medusa's severed neck, sired by Poseidon in his guise as horse-god. He carried the hero Bellerophon into battle against the Chimera, and where his hoof struck Mount Helicon the spring Hippocrene welled up for the Muses. He ended his days in Zeus's stables, bearing the thunderbolts, and was set among the constellations.