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Male Guy IV Baron De Brienne Click to view Guy IV Baron De Brienne in the family tree

Guy IV Baron De was born about 1202 in Walwyn's Castle, Haverfordwest, Pembrokeshire, Wales.  Guy IV Baron De's father was Guy III De Brienne.  His paternal grandfather was Guy De Bar Sur Seine.  He was an only child.  He died on June 1st, 1252 in Walwyn's Castle, Haverfordwest, Pembrokeshire, Wales.


Guy IV Baron De's family with Jane De La Pole

They had a son named Guy I De.

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