Cawley, Charles & Foundation of Medieval Genealogy, 'Champagne, Nobility: Chapte...

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Cawley, Charles & Foundation of Medieval Genealogy, 'Champagne, Nobility: Chapter 15E Seigneurs de Courtenay 1161-1303 (Capet)', version 3.7 15 April 2016, in Medieval Lands: A prosopography of medieval European noble and royal families. http://fmg.ac/Projects/MedLands/index.htm : viewed 10 August 2016.

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