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Female Isabel de Beaumont Click to view Isabel de Beaumont in the family tree

Isabel de was born about 1310 in Longborough Castle, Leicestershire, England.  Isabel de's father was Henry 1st Baron de Beaumont , Earl of Buchan and her mother was Alice Comyn , Countess of Buchan.  Her paternal grandparents were Louis of Acre de Brienne , Vicomte Beaumont and Agnes Heiress de Beaumont; her maternal grandparents were Alexander Comyn , Sheriff of Aberdeen and Joan le Latimer. She had a brother and two sisters, named John 2nd Baron de, Catherine de and Elizabeth de.  She was the oldest of the four children.


Isabel de's family with Henry of Grosmont Plantagenet , Duke of Lancaster

‌Isabel de and Henry of Grosmont were married in a religious ceremony about 1337.

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