| Children |
| | 1. Robert IV, 1ST Baron DE Ros, OF BELVOIR,MP, b. Abt 1233, Helmsley Castle North Riding,Yorkshire,England d. 17 May 1285, Belvior Castle,Belvoir,Leicestershire,England (Age 52 years) |
| | 2. Lucy de Ros, b. Abt 1230, Helmsley,England d. Aft 1278 (Age > 49 years) |
| | 3. Dorothea de Ross, b. Abt 1238, Hamlake Castle, West Riding, Yorkshire, England  |
| | 4. William 11 De Ros, Brn Ingmanthorpe,sir, b. Abt 1244, Ingmanthorpe, Penistone, West Riding, Yorkshire, England d. Bef 28 May 1310, Ingmanthorpe,York,England (Age < 66 years) |
| | 5. Anne Rosse, b. Abt 1246,  |
| | 6. Mary de Ros, Baroness of Brewose, b. Abt 1249,  |
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