Encyclopedias, Almanacs, Transcripts, and Maps
- William of Moerbeke
- William of Newburgh
- William of Norwich, St.
- William of Notingham
- William of Notre Dame de l'Olive, St.
- William of Pagula (Poul)
- William of Peter of Godin
- William of Ruisbroek (Ruysbroeck)
- William of Saint-Amour
- William of Saint-Bénigne of Dijon, St.
- William of Saint-Brieuc, St.
- William of Saint-Thierry
- William of Sandwich, Chronicle of
- William of Sherwood (Shyreswood)
- William of Toulouse, St.
- William of Tripoli
- William of Turbeville
- William of Vaurouillon
- William of Vercelli, St.
- William of Ware