Orpheas was the son of Oeagrus who was king of Thrace. "Orpheas succeeded his father to the throne, having been taught Astronomy, Theology, the Mysteries, the Art of Music and everything that could contribute to his great education by his own father".
Orpheas' teachings and theories are preserved in "Argonautica", "The Orphic Hymns", and "Fragments". The Orphic Hymns are a valuable work and a challenge for scientists because we are given information on the astronomical knowledge of Hellenes during the 2nd Millennium B.C. as well as before it. Some writers also saved that even Homer copied some verses from the Orphic Hymns like the beginning of his "Iliad" (Clemes Alexandreus, Proclus, Athenagoras, Iustinus).