BI
Baudouin III Count of Hainaut
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Research notes
✓ Baudouin III, Count of Hainaut (d. 1120), son of Baudouin II by Ida of Louvain; m. [1107] Yolande van Gelre, heiress of Dodenweerd; father of Baudouin IV. Source: Medieval Lands (fmg.ac, Cawley), read 2 Nov 2026: 'Hainaut'. [DIRECT ANCESTOR OF THE COMPILER: flag added 2 Nov 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]