Gertrude of Flanders

✓ Gertrude of Flanders (d. [1115/26]), da. of Robert I 'the Frisian', Count of Flanders, by Gertrude of Saxony (Galbert of Bruges: 'abbatissam Messinis et Gertrudem' daughters of Count Robert and his wife Gertrude); m. (1) Henri III, Comte de Louvain, (2) 1095 Thierry II, Duke of Lorraine - Cartulaire de Saint-Bertin: 'Gertrude filia Roberti Frisonis, vidua Henrici Bruselensis'. Source: Medieval Lands (fmg.ac, Cawley), read 2 Nov 2026: 'Flanders, 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.]