Pegasides name of a nymph who had sex with the Trojan prince Emathion and gave birth beside the river Granicus to Atymnius. The latter was eventually killed by Odysseus in the Trojan War. Pegasides Pegasides () were nymphs of Greek mythology connected with wells and springs, specifically those that the mythical horse Pegasus created by striking the ground with his hooves. According to Greek mythological tradition the winged horse Pegasus was the son of Poseidon, sea and river god of the Greeks, equivalent to the Roman Neptune. The hero Bellerophon needed the untamed Pegasus to help him defeat the monster Chimera.
Celtic mythology Less is known about the pre-Christian mythologies of Britain than those of Ireland. Important reflexes of British mythology appear in the Four Branches of the Mabinogi, especially in the names of several characters, such as Rhiannon, Teyrnon, and Brân the Blessed ("Bendigeidfran", "Bran [Crow] the Blessed"). Other characters, in all likelihood, derive from mythological sources, and various episodes, such as the appearance of Arawn, a king of the Otherworld seeking the aid of a mortal in his own feuds, and the tale of the hero who cannot be killed except under seemingly contradictory circumstances, can be traced throughout Indo-European myth