| Children |
| | 1. Einion ap Owain, b. 933, Dinefwr Castle, Carmarthenshire, Wales d. 984, Monmouthshire, Wales (Age 51 years) |
| | 2. Gruffyd ap Owen ap Howel Dda, b. Abt 934, Wales, United Kingdom d. DECEASED |
| | 3. Cadwallon ap Owen,, King of Gwynedd, b. Abt 936, Ceredigion, Wales, United Kingdom d. 961 (Age 25 years) |
| | 4. King Maredudd Meredydd ap Owain, of Wales, b. 938, Dynevor, Carmarthenshire, Wales, United Kingdom d. 998, Pembroke, Pembrokeshire, Wales, United Kingdom (Age 60 years) |
| | 5. Idwallon ab Owain, b. 940, Wales, United Kingdom d. 975 (Age 35 years) |
| | 6. Iestyn ap Owain, b. Abt 942, Pembrokeshire, Wales d. 1033, Wales (Age 91 years) |
| | 7. Lestyn, b. Abt 942, Wales, United Kingdom d. DECEASED |
| | 8. Siwuana Verch Owain, b. Abt 944, Dinefwr Castle, Carmarthenshire, Wales, United Kingdom d. DECEASED |
| | 9. Meredith ap Augharad, b. Abt 945, Flintshire, Wales, United Kingdom d. 998 (Age 53 years) |
| | 10. Llewku Verch Owain, b. Abt 946, Llandilo, Pembrokeshire, Wales, United Kingdom d. DECEASED |
| | 11. Ardden Verch Owain, b. Abt 948, Llandilo, Pembrokeshire, Wales, United Kingdom d. DECEASED |
| | 12. Grono, b. Abt 950, Flintshire, Wales, United Kingdom d. DECEASED |
| | 13. Gwenllian ferch Owain, b. 950, Llanwnog, Montgomeryshire, Wales, United Kingdom d. DECEASED |
| | 14. Marred verch Owain, b. Abt 950, Llandilo, Pembrokeshire, Wales, United Kingdom d. DECEASED |
| | 15. Prince Grono ap Owen, b. Abt 950, Flintshire, Wales, United Kingdom d. DECEASED |
| | 16. Meirchion Ap Owain, b. 952, Llanilid, Glamorgan, Wales, United Kingdom d. Y, Picardie, France  |
| | 17. King Owain ap Hywel Dda, of South Wales, b. Abt 954, Dynevor, Carmarthenshire, Wales, United Kingdom d. 988, Carmarthenshire, Wales, United Kingdom (Age 34 years) |
| | 18. Gwerfyl Verch Owain, b. Abt 954, Dynevor, Carmarthenshire, Wales, United Kingdom d. DECEASED |
| | 19. Llewelyn ap Owen, b. 956, Caernarfonshire, Wales, United Kingdom d. DECEASED |
| | 20. Guerstan d. 999 |
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