ID
Isabel d'Aubigny
d. 1301
Vitals
Died
1301
Family
Parents
Spouse
Children
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.