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Male Jean I De+ FIennes Click to view Jean I De+ FIennes in the family tree

Jean I De+ was born about 1262.  Jean I De+'s father was William II De+ Fiennes and his mother was Blanche De+ Brienne.  His paternal grandfather was Enguerrand II De+ Fiennes and his paternal grandmother is Agnes De+ Conde; his maternal grandfather was Jean II De+ Brienne and his maternal grandmother is Jeanne De+ Chateaudun. He had two sisters named Margaret De+ and Joan De+.  He was the second oldest of the three children.  He died after 1333.


Jean I De+'s family with Isabeau De+ Dampierre

‌Jean I De+ and Isabeau De+ were married in a religious ceremony in 1307.  They had two daughters named Mahaut De and Jeanne De+.


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