According to some of these texts, like the Gospel of Philip, Magdalena was the partner or consort of Jesus, and even mentions the existence of an offspring of both in clear terms: "There is the mystery of the Son of Man and the mystery of the son of the Son of Man." Moreover, this gospel develops this claim, holding that Christ had the ability to create and to beget, to culminate suggesting that his union with Mary Magdalene was a "sacred marriage", which unlike the layman calls qualified mystery. There is no doubt that these apocryphal "hunted down and destroyed by the Church from the years following the Council of Nicea in the fourth century AD, gave rise to a legend that circulated widely during the Middle Ages. But to what extent it was possible to document the persistence of this tradition? My initial findings were at "El Camino de Santiago", which I consider more appropriate to call Priscillian, "Bishop heretic" born in Galicia, in the year 340 AD. Prisciliano preached a Gnostic doctrine, which had a notable success in the north of Spain and in southern Gaul. Almost all the places related to the Way are studded with references to toponymic Oc. It is not coincidence that one to Compostela with Mary Magdalene and the Secret of the Grail, in Languedoc France, situated in the vicinity of Rennes le Chateau, one of the keys to the enigma. It was in the Monastery of Santa Maria de Oia, in his church XII century Cistercian monastery, where I found the first track. .