Guillaume de Dampierre, seigneur of Dampierre-sur-l'Aube

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Guillaume de Dampierre, seigneur of Dampierre-sur-l'Aube, whose ancestry is unknown (or not traced here), died 3 September 1231.1

Guillaume married, as her 2nd husband, Marguerite of Flanders, daughter of Baudouin VI, Emperor of Constantinople, Count of Flanders & Hainault and Marie of Champagne, before 15 November 1223.1


Marguerite of Flanders b. 1202, d. 10 Feb 1280


  1. [S1947] Douglas Richardson, Royal Ancestry: A Study in Colonial and Medieval Families, Five vols. (Salt Lake City, Utah: s.p., 2013), 3:187 (Hainault 6), further cited as Richardson, Royal Ancestry.
This person was last edited on21 Apr 2019