Ursmar was a 7th-century missionary bishop who operated within the Meuse and Ardennes regions. Born in 644 at Fontenelle, he is recognized as the founding abbot of Lobbes Abbey, an appointment granted to him by Pippin II in 691. A member of the Benedictine order, he also established both Wallers Abbey and Aulne Abbey. His life and religious contributions are documented in a biography composed by Heriger of Lobbes.