Hainaut/Jean I de Avesnes, Comte de Hainaut, entry in "Medieval Lands" database ...

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Hainaut/Jean I de Avesnes, Comte de Hainaut, entry in "Medieval Lands" database (Accessed December 17, 2025). Cawley, Charles. "Medieval Lands": A prosopography of medieval European noble and royal families © by Charles Cawley, hosted by Foundation for Medieval Genealogy (FMG).

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