Isabel d'Aubigny
d. 1301
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About
Isabel d'Aubigny was heiress of Belvoir and married into the Ros family, which is how the two great northern baronies came into one hand.
Research notes
✓ DOCUMENTED (web-confirmed 25 Jul 2026): ISABEL D'AUBIGNY (c.1233-1301), daughter and coheiress of William d'Aubigny of BELVOIR (whence the Ros barons gained Belvoir); wife of Robert de Ros (d.1285); mother of the 1st Lord Ros (our line). *** BONUS SURETY: the d'Aubignys of Belvoir descend from WILLIAM D'AUBIGNY (d.1236), himself ONE OF THE 25 MAGNA CARTA SURETIES - the intermediate Belvoir generations note-only, extendable: a second surety strand entering here. Direct ancestress. Added 25 Jul 2026. || CP XI p.96 (19 Oct 2026): 'Isabel, da. and h. of William d'Aubigny, lord of Belvoir', m. Robert de Ros between 5 Jun 1243 and 17 May 1244; aged 50 or 52 in 1285; d. 15 Jun 1301, bur. Newstead near Stamford; probably daughter of William's 2nd wife Isabel (I101303, ~).
Death: bur. Newstead, near Stamford