Orpheus (north east Danube valley) and even describes him wandering into Hyperborea and Tanais (ancient Greek city in the Don river delta) due to his grief. The story of Eurydice may actually be a late addition to the Orpheus myths. In particular, the name "Eurudike" ("she whose justice extends widely") recalls cult-titles attached to Persephone. According to the theories of poet Robert Graves, the myth may have been derived from another Orpheus legend, in which he travels to Tartarus and charms the goddess Hecate. The myth theme of not looking back, an essential precaution in Jason's raising of chthonic Brimo Hekate
Orpheus of Demeter Chthonia and that of the "Kóres Sōteíras" (Greek "Κόρες Σωτείρας" "Saviour Maidens"). Also in Taygetus a wooden image of Orpheus was said to have been kept by Pelasgians in the sanctuary of the Eleusinian Demeter. According to Diodorus Siculus, Musaeus of Athens was the son of Orpheus. The "Argonautica" () is a Greek epic poem written by Apollonius Rhodius in the 3rd century BC. Orpheus took part in this adventure and used his skills to aid his companions. Chiron told Jason that without the aid of Orpheus, the Argonauts would never be able to pass the Sirens—the same