He is married to Agnes de Dammartin.
They got married about 1203 at Martock, Somersetshire, ENGLAND.
Child(ren):
Helped win Magna Charta from King John--1214
For more information on the Fiennes family geneaology:
http://www.kentarchaeology.ac/digiarchive/ColinFlight/dover-constables.pdf
Guillaume Fienes | ||||||||||||||||||||||||||||||||||
± 1203 | ||||||||||||||||||||||||||||||||||
Agnes de Dammartin |
The data shown has no sources.