Guillaume I De Fiennes
Guillaume I was born about 1160 in , , Buckinghamshire, England.  He died in 1241.  He was buried in 1241.

 Agnes De Dammartin
Agnes was born about 1166 in , , Buckinghamshire, England.

 Ingelram II De Fiennes Sir
Ingelram II was born about 1192 in Conde, , , France.  He died on December 31st, 1298.