Barlow, Frank (1983). William Rufus. Berkeley, CA: University of California Press. ISBN 978-0-520-04936-9. OCLC 8954468.
David, Charles Wendell (1920). Robert Curthose, Duke of Normandy. Cambridge, MA: Harvard University Press. OCLC 1960516. Also OCLC 187406785 Also published as David, Charles Wendell (1982). Robert Curthose, Duke of Normandy. New York: AMS Press. ISBN 978-0-404-17007-3. OCLC 7976915. Also published as David, Charles Wendell (2007). Robert Curthose, Duke of Normandy. Gardners Books. ISBN 978-1-4326-9296-4. OCLC 166871921.
Green, Judith (2000). "Robert Curthose Reassessed". in Harper-Bill, Christopher. Anglo-Norman studies XXII: proceedings of the Battle Conference 1999. Woodbridge: Boydell Press. pp. 95–116. ISBN 978-0-85115-796-2. OCLC 45238208. Also OCLC 247394557
Mooers, Stephanie L (Fall 1981). ""Backers and Stabbers": Problems of Loyalty in Robert Curthose's Entourage". Journal of British Studies 21 (1): 1–17. doi:10.1086/385779.
