 In fact, de Calan argues, it is entirely unlikely that a. Goulven's body, if indeed he had been bishop in Léon, would have been left in Rennes; and b. that Goulven was supposed to be a bishop in Léon in the first place, not in Rennes.De Calan finds no evidence of any ancient cult of Goulven in Léon (and he is not found in any of the litanies of the 11th century from the area)