Sureties without known descendants
past four generations:
- William de Forz, titular Earl of Aumale
- William de Hardell, Mayor of London
- Geoffrey de Mandeville, Earl of Essex
- William Marshal the Younger (later Earl of Pembroke)
- Roger de Montbegon
- Richard de Mountfichet
- Richard de Percy
- Eustace de Vescy
Richard de Percy had 2 sons with Alice Neville but descendants died out.
That's they key, NO KNOWN.....PAST FOUR GENERATIONS.
Some inter-marrying occurred:
Hugh Bigod m. Maude Marshal, her brother was an MCB
Gilbert de Clare m. Isabel Marshal, sister of Maude above
John de Lacy m. Margaret de Quincy, grand daughter of Saher de Quincy
those are just what I can recall, hope this helps
Ellen