Ermentrude of Burgundy

✓ Ermentrude of Burgundy, 'filia Wilelmi comitis de Burgundia' (charter 1105), daughter of William I 'the Great', Count of Burgundy (I100018); wife of Thierry I de Mousson; mother of Thierry II of Montbeliard. RING 20 Oct 2026 into William I of Burgundy (F99841). Source: Medieval Lands (fmg.ac, Cawley), 'Burgundy Kingdom - Montbeliard'. [DIRECT ANCESTOR OF THE COMPILER: flag added 20 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]