ウスタシュ3世 (ブローニュ伯)
Aird, William M. (2011). Robert `Curthose', Duke of Normandy (C. 1050-1134). Boydell Press
Barber, Malcolm (2012). The Crusader States. Yale University Press
Barlow, Frank (1983). William Rufus. University of California Press
Cowdrey, Herbert Edward John (1978). Two Studies in Cluniac History, 1049-1126. LAS
Huneycutt, Lois (2019). “Becoming Anglo-Norman: The Women of the House of Wessex in the century after the Norman Conquest”. Forgotten Queens in Medieval and Early Modern Europe: Political Agency, Myth-Making, and Patronage. Routledge
Mayer, Hans Eberhard (1985).