Nguồn Blanche_xứ_Artois

  1. ↑ Richardson, Douglas (2011). Plantagenet Ancestry: A Study In Colonial And Medieval Families. tr. 103. ISBN 1461045134.
  2. ↑ Evergates, Theodore (2011). The Aristocracy in the County of Champagne, 1100–1300. University of Pennsylvania Press. tr. 56, 57. ISBN 0812201884.
  3. ↑ Prestwich, Michael (1988). Edward I. University of California Press. tr. 315. ISBN 0520062663.
  4. ↑ Woodacre, Elena (2013). The Queens Regnant of Navarre: Succession, Politics, and Partnership, 1274–1512. Palgrave Macmillan. tr. 25–29. ISBN 1137339152.