| Children |
| | 1. Sir Thomas de Fienes, b. 1177, Martock, Somerset, England, United Kingdom d. DECEASED |
| | 2. Michelle de Fiennes, b. Cal 1178, Buckinghamshire, England, United Kingdom d. Abt 1245, Buckinghamshire, England, United Kingdom (Age 67 years) |
| | 3. Jacques de Fiennes, b. Cal 1187, Somerset, England, United Kingdom d. DECEASED |
| | 4. Enguerrand II de Fiennes, b. 27 Apr 1192, Wendover, Buckinghamshire, England, United Kingdom d. Sep 1265, Wendover, Buckinghamshire, England, United Kingdom (Age 73 years) |
| | 5. Baldwin De Fiennes, b. Abt 1196, Essex, England, United Kingdom d. DECEASED |
| | 6. William De Fiennes, b. 1200, Martock, Somerset, England d. 1303, Wigmore, Herefordshire, England, United Kingdom (Age 103 years) |
| | 7. * De Fiennes, b. Abt 1204, Essex, England, United Kingdom d. DECEASED |
| | 8. Agnes Sybilla De Fiennes, b. Cal 1204, Essex, England, United Kingdom d. DECEASED |
| | 9. Mahaut De Fiennes, b. Cal 1205, Wendover, Buckinghamshire, England, United Kingdom d. 1244, Essex, England (Age 39 years) |
| | 10. Michel de Fiennes, b. 1205, Nord, Nord-Pas-de-Calais, France d. DECEASED |
| | 11. Ingelram de Fiennes, b. 1210, Fiennes, Pas-de-Calais, Nord-Pas-de-Calais, France d. 1265, Fiennes, Pas-de-Calais, Nord-Pas-de-Calais, France (Age 55 years) |
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