Clemence de Mayenne

✓ Clemence de Mayenne, wife of Robert IV de Sable and mother of Marguerite and Philippa de Sable (as given by Medieval Lands). Her parents Geoffroy III de Mayenne x Constance (~) wired 22 Oct 2026; her uncle Juhel II named by her daughter in 1205. Source: Medieval Lands (fmg.ac, Cawley), 'Angouleme' (Sable). [DIRECT ANCESTOR OF THE COMPILER: flag added 22 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]