WD
William d'Aubigny Brito
d. 1236
Vitals
Died
1236
Family
Children
About
William d'Aubigny of Belvoir, called Brito, was one of the twenty-five sureties of Magna Carta. He held Rochester Castle against King John through a two-month siege in 1215 and was imprisoned when it fell.
Research notes
✓ DOCUMENTED (web-confirmed 25 Jul 2026; Magna Carta Trust): WILLIAM D'AUBIGNY 'BRITO', LORD OF BELVOIR (c.1146-1236) - ONE OF THE TWENTY-FIVE SURETY BARONS OF MAGNA CARTA (1215); held Rochester Castle against King John in the great siege of 1215 and was imprisoned. *** THE SIXTH SURETY IN THE DIRECT LINE (via Isabel d'Aubigny -> the de Ros of Helmsley). Son of William d'Aubigny II of Belvoir. Father of William d'Aubigny (our line). Direct ancestor - a Magna Carta surety. Added 25 Jul 2026.