Catholic Encyclopedia
St. Arnulf of Metz, Frankish civil servant at the court of Austrasia, bishop of Metz, hermit, d. about 640.
For All the Saints
Brief hagiography of St. Arnulf of Metz, also known as St. Arnoul.
Patron Saints Index
Profile of St. Arnold, or Arnulf of Metz. Illustrated.
The Ecole Glossary
Short biography of St. Arnulf of Metz, by Karen Rae Keck.