He was born on August 10, 1088 in Mons, Hainaut, Belgique.Source 2
Profession: Comte de Hainaut et de Valenciennes, Comte de Hainaut 1098-1120, de Valenciennes et d Ostrevan, Comte de Hainaut, de Valenciennes et d Ostrevant 1098-1120.
He died on June 24, 1120 in Mons, Hainaut, Belgique, he was 31 years old.Source 3
He is buried in Abbaye Sainte-Valtrude-Mons (Hainaut), Belgique.Source 4
When copying data from this family tree, please include a reference to the origin: Frans Chodzynski, "Family tree Chodzynski", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-chodzynski/I9744.php : accessed January 10, 2026), "Baudouin III de HAINAUT (1088-1120)".
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