Agnes de Mortain

✓ Agnes, 'da. of Robert, Count of Mortain' (CP IV 'Derby' p.191), wife of Andre, Seigneur de Vitre, and mother of Hawise, Countess of Derby. CP names only her father; she is placed with his wife Matilda de Montgomery (F99822) following the standard accounts (Medieval Lands) - that maternity at ~ until re-read. RING 27 Oct 2026 to Robert of Mortain (I99991) and so to Herleva. Source: Complete Peerage 2nd ed. vol. IV (1916), 'Derby' pp.191-194 and Appendix I 'Peverel of Nottingham' pp.761-767 (archive.org completepeerageo04coka), read 27 Oct 2026. [DIRECT ANCESTOR OF THE COMPILER: flag added 27 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.]