By the late Middle Ages, the reality of a primordial "Demogorgon" was so well fixed in the European imagination that "Demogorgon's son Pan" became a bizarre variant reading for "Hermes' son Pan" in one manuscript tradition of Boccaccio's "Genealogia Deorum gentilium" ("Genealogies of the Gods":1.3–4 and 2.1), misreading a line in Ovid's "Metamorphoses".