Pegasus another was at Troezen. Hesiod relates how Pegasus was peacefully drinking from a spring when the hero Bellerophon captured him. Hesiod also says Pegasus carried thunderbolts for Zeus. There are several versions of the birth of the winged stallion and his brother Chrysaor in the far distant place at the edge of Earth, Hesiod's "springs of Oceanus, which encircles the inhabited earth, where Perseus found Medusa: One is that they sprang from the blood issuing from Medusa's neck as Perseus was beheading her, similar to the manner in which Athena was born from the head of Zeus. In another version,
Medusa Rondanini to Napoleonic Paris, it was the "Medusa Rondanini" that served as the model for the gorgon's head in Perseus' outstretched hand. The "Medusa Rondanini" may be a Roman copy of a classical work of the fifth century BC, a model attributed to one or another Athenian sculptor of the age of Phidias. Alternatively, it may have been modeled after a classicising Hellenistic work of the late fourth century BC. If it is of the fifth century, Janer Danforth Belson has pointed out, it is the first of the "beautiful gorgoneion" type to appear in Greek art by more than a