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Male Gilbert De Clare Click to view Gilbert De Clare in the family tree

Gilbert was born on September 21st, 1100 in Tunbridge, Kent, England.1   Gilbert's father was Gilbert Fitz Richard and his mother was Adeliza De Clermont.  His paternal grandparents were Richard Fitz Gilbert De Clare and Rohese Giffard.  He was an only child.  He died in England.2 

Family Details of Gilbert's family with Isabel (Elizabeth) DeBeaumont

1 phelps1609.FTW
2 Riley.FTW
Further sources/citations:
World Family Tree Vol. 4, Ed. 1 @ Tree #0574, 0574.ftw, phelps.FTW @ Tree #1353, World Family Tree Vol. 16, Ed. 1 @ Tree #1609, World Family Tree Vol. 14, Ed. 1 @ Tree #0646