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Male Sir John Fitz Geoffrey Click to view Sir John Fitz Geoffrey in the family tree

1   Sir John Fitz's father was Geoffrey Fitz Piers and his mother was Aveline De Clare.  He was an only child.  He died on November 23rd, 1258.1 

Family Details of Sir John Fitz's family with Isabel Bigod

1 phelps.FTW @ Tree #1353
Further sources/citations:
World Family Tree Vol. 4, Ed. 1 @ Tree #0574, 0574.ftw