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Female Isabelle De Grey Click to view Isabelle De Grey in the family tree

Isabelle was born in 1378 in Barton, North Riding, Yorkshire, England.  Isabelle's father was John De Grey.  Her paternal grandparents were Sir John De Grey and Catherine FitzAlan.  She was an only child.  She died in East Newton, Yorkshire, England.


Isabelle's family with Robert Thornton

‌Isabelle and Robert were married in a religious ceremony in 1396.  They had five sons and a daughter, named Lord Robert, John, Richard, Thomas, William and Alice.

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