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- [S336463] Medieval Lands: A prosopography of medieval European noble and royal families, Charles Cawley, (Online: The Foundation for Medieval Genealogy at http://fmg.ac/Projects/MedLands/, 20XX), "THIBAUT de Champagne, son of THIBAUT III Comte de Champagne & his wife Infanta doña Blanca de Navarra (Pamplona 3 May 1201-Pamplona 8 Jul 1253, bur Pamplona)" at http://fmg.ac/Projects/MedLands/CHAMPAGNE%20NOBILITY.htm#TeobaldoIdied1253B.
- [S420] The Crusades: The Authoritative History of the War for the Holy Land, Thomas Asbridge, (New York: HarperCollins, 2010), 573.
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