Children |
| 1. Amice De Clare, Countess Of Devon, b. 27 May 1220, Plumpton, Yorkshire, England d. Bef 21 Jan 1284, Plumpton, Yorkshire, England (Age < 63 years) |
| 2. Richard De Clare, 5th Earl Of Hereford 6th Earl Of Gloucester, b. 4 Aug 1222, Clare Castle, Clare, Suffolk, England d. 14 Jul 1262, Waltham, Canterbury, England (Age 39 years) |
| 3. Isobell de Clare, Of Gloucester And Hartford, b. 2 Nov 1226, Tewkesbury, Gloucestershire, England d. 10 Jul 1264, Cleveland, Yorkshire, England (Age 37 years) |
| 4. William De Clare, b. 18 May 1228, Gloucestershire, England, United Kingdom d. 23 Jul 1258, Berwickshire, Scotland (Age 30 years) |
| 5. Agnes De Clare, b. 1229, Gloucestershire, England, United Kingdom d. 26 Dec 1261, England, Unitd Kingdom (Age 32 years) |
| 6. Gilbert De Clare, b. 13 Sep 1229, Gloucestershire, England, United Kingdom d. Aft 1241, Gloucestershire, England, United Kingdom (Age > 13 years) |
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