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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 De Fiennes and her mother was Agnes De Dammartin.  Her paternal grandparents were Ingelram De Fiennes and Sibyl De Boulogne; her maternal grandparents were Alberic II Count Of Dammartin and Maud Of Clermont. She had a brother named Enguerran Ingelram De.  She was the younger of the two children.


Mahaut De's family with Baudoin III Comte De Guines

‌Mahaut De and Baudoin III Comte De were married in a religious ceremony about 1227.  They had a son named Arnould III Comte De.

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