Mathilde de Vermandois

✓ Mathilde of Vermandois (after [1130]), da. of Hugh Magnus, Comte de Vermandois, and Adelaide of Vermandois (Genealogiae Scriptoris Fusniacensis); wife of Raoul de Beaugency. RING into Hugh Magnus x Adelaide: sister of Isabel de Vermandois, already an ancestor. Source: Medieval Lands (fmg.ac, Cawley), read 2 Nov 2026: 'Valois, Vexin, Vermandois'. [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.]