ロベール2世 (フランドル伯)
Bouchard, Constance Brittain (1987). Sword, Miter, and Cloister:Nobility and Church in Burgundy, 980-1198. Cornell University Press
Frankopan, Peter (2012). The First Crusade: The Call from the East. Harvard University Press
Kostick, Conor (2008). The Social Structure of the First Crusade. Brill
Nicholas, Karen S. (1999). “Countesses as Rulers in Flanders”. Aristocratic Women in Medieval France. University of Pennsylvania Press. ISBN 978-0812200614
1 2 Runciman 1951, p. 166.
↑ Paul 2012, p. 40.
↑ Nicholas 2013, p. 58.
↑ Kostick 2008, p. 257.
↑ Runciman 1951, p. 186.
↑ Runciman 1951, p. 244-246.
↑ Riley-Smith 2002, p. 151.
↑ Frankopan 2012, p. 257.
↑ Nicholas 1999, p. 118.
↑ Bouchard 1987, p. 146.