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Female Mahaut de Fiennes Click to view Mahaut de Fiennes in the family tree

Mahaut de was born about 1205 in Wendover Manor, Buckinghamshire, England.  Mahaut de's father was William I de Fiennes and her mother was Agnes de Dammartin.  Her paternal grandparents were Enguerrand de Fiennes , Lord of Martock and Sibyl de Boulogne; her maternal grandparents were Alberic II Comte de Dammartin and Maud (Mathilde) of Clermont. She had two brothers named Enguerrand de and William de.  She was the oldest of the three children.

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