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Male Guy III De+ Brienne Click to view Guy III De+ Brienne in the family tree

Guy III De+ was born about 1260 in Walwynscastle, Pembrokeshire, Wales.  Guy III De+'s father was Guy II De+ Brienne and his mother is Eva De+ Tracy.  His paternal grandparents are Guy I De+ Brienne and Jane De La+ Pole; his maternal grandfather was Henry De+ Tracy and his maternal grandmother is Maud De+ Braose. He had a sister named Maud De+.  He is the younger of the two children.


Guy III De+'s family with Sibyll De+ Sully

They had a son and a daughter, named Guy IV De+ and Jane De.


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