William Marshall , signee of MAGNA Carta Surities

I find this s interesting

My Great Grandfather x

Both William THE Marshal William Marshal, 1st Earl of Pembroke and his son William William Marshal, 2nd Earl of Pembroke, Magna Carta Surety were involved with the Magna Carta, THE Marshal as advisor to the King, and his son as a Surety (a guarantor of the King's future good behavior ha ha).

Found one duplicate for THE Marshal: Sir William Marshal, 1st Earl of Pembroke , and one that is a bit ambiguous, might be either of them: William of Pembroke Marshal

There are several that are probably bogus:

William fitz Marshall, Earl of Pembroke (he *can't* have been Earl of Pembroke at *that* early date).

William Marshall, Earl of Pembroke (no such person - none of THE Marshal's sons left any heirs)

Sir William Marshall, Earl of Pembroke (Pembroke went from de Valence to Hastings hands during his time and the Marshal family no longer had anything to do with it).

NB: After THE Marshal's sons all died heirless, the Marshal name was preserved in England mainly by the descendants of his raffish brother John, who ditched his wife for a mistress who gave him a son he eventually legitimated.

You can always try and merge them all. But then you have to remember to go into the master profile and fix any duplicate profiles after that of children and family.