 There was an Anglo-Saxon cognate, "Earnulf" (Ernulf), which was assimilated to the Frankish form of the name after the Norman conquest.Arnulf of Eynesbury is an obscure 9th-century English saint, who was mostly forgotten by the 11th century, and who was perhaps just a folkloristic duplicate of the historical Arnulf of Metz.In any case, the English Arnulf would have been known as "Earnulf", and his relics were venerated in "Earnulfesbyrig" (Eynesbury, Cambridgeshire).