Wandregisel was a 7th-century Frankish monk and abbot who served as the first leader of Fontenelle Abbey. Born near Verdun around 605, he initially worked as a courtier in Metz under King Dagobert I. His religious life included a period as a hermit at Saint-Ursanne and a visit to the Bobbio monastery in 635. He eventually established the monastery in Normandy, where he governed according to the monastic rule of Columbanus.