Isabel Mauduit ^{1 2 3}

  Research Notes:

From William de Beauchamp, 9th Earl of Warwick :
His father was William de Beauchamp of Elmley Castle , his mother, Isabel Mauduit, sister and heiress of William Mauduit, 8th Earl of Warwick .
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From William Maudit, 8th Earl of Warwick :
He was the son of Alice de Beaumont (daughter of the 4th Earl) and William de Maudit, and so was the grandson of Waleran de Beaumont, 4th Earl of Warwick . His father was the lord of Hanslape and hereditary chamberlain of the exchequer, a title that went back to another William Maudit who held that office for Henry I .
He died without issue and the estates then passed to his sister Isabel de Maudit who had married William de Beauchamp. She died shortly after Warwick's death and the title passed to their son William .

Isabel married William de Beauchamp 5th Baron Beauchamp, son of Walter de Beauchamp of Elmley, Worcestershire and Isabella de Mortimer. (William de Beauchamp 5th Baron Beauchamp was born about 1210 and died in 1269.)