Sir Orfeo original Greek myth. Unlike Orpheus who was actually descended from Gods, Sir Orfeo's parents were just named after Gods. When Sir Orfeo goes to take his wife back, no condition is issued to not look back at her. Sir Orfeo exiles himself for ten years, citing not wanting to see any more women after suffering the loss of his beautiful wife. For Orpheus, this self-exile occurs after he has lost Eurydice the second time. The loss of Eurydice, and the saving of Heurodis is the main difference between the tragedy of the original myth and the romance lai "Sir Orfeo".
Eurydice (wife of Antipater II of Macedon) named in honor of her maternal aunt Eurydice of Egypt, another daughter of Antipater, who was one of the wives of the Greek Pharaoh Ptolemy I Soter. The name "Eurydice", is a dynastic name of the Argead dynasty (see Eurydice-Historical women). The name also reveals her relations to the Argead dynasty as her maternal grandfather and her maternal great-uncle Cassander were distant collateral relatives to the Argead dynasty. At an unknown date, Lysimachus renamed the city Smyrna to "Eurydiceia" in honor of Eurydice, an innovation that did not last long. Lysimachus issued coinage depicting Eurydice on the obverse as a