A winged horse son of Poseidon God of the sea and the Gorgon Medusa Pegasus sprang fromMedusa's neck when she was killed by the hero
Perseus. Shortly after its birth, the magical
steed struck the ground with his hoof on
Mount Helicon, and on the spot a spring,
later sacred to the Muses and believed to be
a source for poetic inspiration, began to flow.
All longed in vain to catch and tame the creature,
and this became the obsession of Bellerophon,
prince of Corinth. On the advice of a seer,
Bellerophon spent a night in the temple of
the goddess Athena. As he slept, the goddess
appeared to him with a golden bridle and told
him that it would enable him to capture Pegasus.
When Bellerophon awoke, he found the golden
bridle beside him, and with it he easily
captured and tamed the winged horse.

Excerpt from the Encyclopedia Britannica:
In Greek mythology, Pegasus was a winged horse
that sprang from the blood of the Gorgon Medusa
as she was beheaded by the hero Perseus.
With Athena's (or Poseidon's) help, another
Greek hero, Bellerophon, captured Pegasus
and rode him first in his fight with the Chimera
and later while he was taking vengeance on
St Heneboea (Anteia), who had falsely accused
Bellerophon. Subsequently Bellerophon attempted
to fly with Pegasus to heaven but was unseated
and killed, the winged horse becoming a
constellation and the servant of Zeus.
Pegasus' story became a favorite theme in
Greek art and literature, and in late
antiquity Pegasus' soaring flight was
interpreted as an allegory of the soul's
immortality; in modern times it has been
regarded as a symbol of poetic inspiration.
Information came from Luvz Mystical Creatures
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