The Gorgons were three monstrous sisters whose lair was in the territory of Libya. Their names were Stheno, Euryale, and Medusa, and they were said to be the offspring of the sea deity Phorcys and his sister Ceto. According to an alternate tradition, they sprang from the earth goddess Gaia, who produced them to be her allies in the battle between the gods and Giants. Of the Gorgon sisters only Medusa was mortal, and for that reason Perseus was sent to fetch her head. According to mythographer Apollodorus, the Gorgons had serpents as hair, large tusks like a boar’s, hands of bronze, and golden wings. Indeed, they were so hideous in appearance that they turned to stone all who looked upon them directly.