Agnes Dammartin was born Abt. 1177 in Dammartin, S-E-Mr, Fmc, and died date unknown.She married William De Fiennes. Children of Agnes Dammartin and William De Fiennes are:
+Ingelram De Fiennes, b. Abt. 1210, Tolleshunt Essex, England, d. Bet. 1265 - 1269.