Pegasus (Greek: , Pgasos, Latin: Pegasus, Pegasos) is a mythical winged divine horse, and one of the most recognized creatures in Greek mythology. Usually he is depicted as pure white. Myths about him vary as the Greek myths evolve and reflect progression through successive generations of deities. In Archaic Greek mythology, Pegasus is the offspring of the Gorgon Medusa, when she was depicted as a mare. In later myths, Pegasus was foaled by Medusa as she was dying, while being decapitated by the hero Perseus. In Classical Greek mythology, the Olympian god Poseidon is identified as the father of Pegasus. Pegasus is the brother of Chrysaor and the uncle of Geryon. Pegasus was caught by the Greek hero Bellerophon near the fountain Peirene with the help of Athena and Poseidon. Pegasus allowed Bellerophon to ride him in order to defeat the monstrous Chimera, which led to many other exploits. Bellerophon later fell from the winged horse's back while trying to reach Mount Olympus, where the deities resided.