This story was published as historical fact in a 1960s French book by Gérard de Sède, entitled Le Tresor Maudit de Rennes-le-Chateau, that also reproduced Philippe de Chérisey's fabricated "parchments".
•
Another fabrication were the alleged Merovingian genealogies that appeared in the Dossiers Secrets, planted in the Bibliothèque nationale de France in 1967.
Dagobert Sigmund von Wurmser | Dagobert I | Dagobert of Pisa | Dagobert | Dagobert Peche | Dagobert II | Dagobert Biermann |
According to the pseudohistorical Dossiers Secrets d'Henri Lobineau and related documents, Sigebert IV, on the assassination of his father Dagobert II, was rescued by his sister and smuggled to the domain of his mother the (otherwise unknown) Visigoth princess, Giselle de Razès in Rennes-le-Château.