During the Viking invasions, Wandregisel's relics were dispersed to various locations and shared between various churches, including the abbey of Saint-Pierre-au-Mont-Blandin in Gand (Nowadays in Belgium).
To Luxeuil came such monks as Conon, abbot of Lérins Abbey to prepare for the reform of his monastery, and Saints Wandregisel and Philibert, founders respectively of the abbeys of Fontenelle and Jumièges in Normandy, who spent years in studying the rule observed in monasteries which derived their origin from Luxeuil.