Beatrix de Mandeville

✓ Beatrix, daughter of Geoffrey I de Mandeville, the Domesday magnate, by his first wife Adelais (Domesday Book, Carshalton: 'Geoffrey de Mandeville gave him this land with his daughter'; royal confirmation 1076/84); wife of Geoffroy de Boulogne. RING 25 Oct 2026 into Geoffrey de Mandeville (I100712); her mother Adelais not in that family, so not asserted. Source: Medieval Lands (fmg.ac, Cawley), 'Northern France (Boulogne; Fiennes)'. [DIRECT ANCESTOR OF THE COMPILER: flag added 25 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]