Children |
| 1. Sir Robert de Thwenge, b. 1255, Kilton Castle, Yorkshire, England , d. May 1279 (Age 24 years) |
| 2. Sir Marmaduke de Thwenge, b. Sep 1256, Kilton Castle, Yorkshire, England , d. Apr 1323, Inq Pm (Age ~ 66 years) |
| 3. Hillaric de Thwenge, b. 1258, Kilton Castle |
| 4. Gawain de Thwenge, b. 1259, Kilton Castle |
| 5. John de Thwenge, b. 1261, Kilton Castle , d. 18 Dec 1330 (Age 69 years) |
| 6. Edmund de Thwenge, b. 1263, Kilton Castle |
| 7. Matilda de Thwenge, b. 1265, Kilton Castle |
| 8. Richard de Thwenge, b. 1267, Kilton Castle |
| 9. Peter de Thwenge, b. 1270, Kilton Castle |
| 10. Johanna de Thwenge, b. 1271, Kilton Castle |
| 11. William de Thwenge, b. 1273, Castleton |
| 12. Roger de Thwenge, b. 1274, Castleton |
| 13. Margery de Thwenge, b. 1276, Castleton |
| 14. Matilda (Maud) de Thwenge, b. Abt 1279 |
| 15. Margaret de Thwenge, b. Abt 1281 |
| 16. Edward de Thwenge |
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