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The Chimera was a creature of significance to the isolated Spanish castellany watched over by the Salazar family.
The Chimera is a creature from Greek and Etruscan mythology. While its appearance varied based on the artist's ideas, it would usually appear as having the head and body of a lion, a snake for a tail, and the head of a goat reaching out from the spine.
The Castle itself had a large relief showing the sacred beast about to be killed by a man on horseback. The scene is analogous to the Greek tale of Bellerophon's slaying of the Chimera, though Pegasus has been replaced with an ordinary horse.