Paeon

Paeon or Paion, in Greek mythology, was an Elean prince as son of King Endymion, and brother of Epeius, Aetolus, Eurycyda and possibly Naxos. From him, the ancient region of Paeonia—on the Axius river, in the northern parts of the modern region of Macedonia—and the tribe of the Paeonians, were believed to have derived their name.