Children |
| 1. Gwladus Ferch Llywellyn, b. 1206, Gwynedd, Caernarvonshire, Wales d. 24 Oct 1251, Windsor, Berkshire, England (Age 45 years) |
| 2. Princess of Gwynedd, Princess of Wales, Countess of Huntingdon and Chester, Elen ferch Llywelyn, b. 1207, Abergwyngregyn, Gwynedd, Wales d. 1253, Gwynedd, Wales (Age 46 years) |
| 3. Margred verch Llywelyn of Caernarfonshire, b. Abt 1208, Caernarfonshire, Wales d. 28 Oct 1267, Clifford Castle, Herefordshire, England, United Kingdom (Age ~ 59 years) |
| 4. Daffyd Ap Llewelyn, Prince Of Gwynedd, b. Mar 1212, Bagillt, Flintshire, Wales d. 25 Feb 1246, Aber Garth Celyn, Gwynedd, Wales (Age ~ 33 years) |
| 5. Elen Ferch Llywelyn, b. 1230, Cantref, Breconshire, Wales d. 16 Feb 1295, Shere, Surrey, England (Age 65 years) |
|