Berthe --- (wife of William de Montagu d.1270)

✓ as a name: Berthe, wife of William de Montagu (d. 1270), 'whose parentage is not known' (CP IX 'Montagu' p.77); mother of Simon, 1st Lord Montagu. TOP. Source: Complete Peerage 2nd ed. vol. IX (1936), 'Montagu' pp.75-82 and notes (article mainly by Ethel Stokes; page images supplied by Aynsley, 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.]