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Male William De Vernon 5th Earl Of Devon Click to view William De Vernon 5th Earl Of Devon in the family tree

William De was born in 1155 in Exeter, Devonshire, England.  William De's father was Baldwin de Reviers , 1st Earl of Devon and his mother was Adelise Lucia de Baalun.  His paternal grandparents were Richard Seigneur de Reviers and Adelise Peverel; his maternal grandfather was Dru de Baalon. He had five sisters named Hawise de, Matilda (Eva) de, Eva de, Maud de and Alice de.  He was the youngest of the six children.  He died at the age of 62 on September 8th, 1217 in Christ Church, Exeter, Devonshire, England.  He was buried in Christ Church, Twynham.


William De's family with Mabel (Maud) De Beaumont [Countess Of Dev

‌William De and Mabel (Maud) De were married in a religious ceremony about 1175.  They had a son and three daughters, named Baldwin De, Mary De Reviers De, Margary De and Joan De.

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