Nielsen Hayden genealogy
Maredudd ab Owain ap Gruffudd ab Yr Arglwydd Rhys
- 1265
Generation: 1
Generation: 3
Generation: 4
1. Maredudd ab Owain ap Gruffudd ab Yr Arglwydd Rhys (son of Owain ap Gruffudd ab Yr Arglwydd Rhys and (Unknown daughter of Gwion Sais)); died in Mar 1265 in Llanbardarn Fawr, Ceredigion, Wales; was buried in Strata Florida Abbey, Ceredigion, Wales. Family/Spouse: (Unknown daughter of Thomas ap Rhodri). [Group Sheet] [Family Chart]
Children:- Owain ap Maredudd ab Owain ap Gruffudd was born in of Iscoed, Ceredigion, Wales; died on 15 Aug 1275; was buried in Strata Florida Abbey, Ceredigion, Wales.
2. Owain ap Gruffudd ab Yr Arglwydd Rhys (son of Gruffudd ab Yr Arglwydd Rhys and Matilda de Briouze); died on 18 Jan 1236 in Strata Florida Abbey, Ceredigion, Wales; was buried in Strata Florida Abbey, Ceredigion, Wales. Owain married (Unknown daughter of Gwion Sais). [Group Sheet] [Family Chart]
3. (Unknown daughter of Gwion Sais) (daughter of Gwion Sais ap Heilin ap Llywarch ap Gwyn). Children:
- 1. Maredudd ab Owain ap Gruffudd ab Yr Arglwydd Rhys died in Mar 1265 in Llanbardarn Fawr, Ceredigion, Wales; was buried in Strata Florida Abbey, Ceredigion, Wales.
Generation: 3
4. Gruffudd ab Yr Arglwydd Rhys (son of Rhys ap Gruffydd, King of Deheubarth and Gwenllian ferch Madog); died on 25 Jul 1201 in Strata Florida Abbey, Ceredigion, Wales; was buried in Strata Florida Abbey, Ceredigion, Wales. Gruffudd married Matilda de Briouze. Matilda (daughter of William de Briouze and Maud de St. Valéry) died on 29 Dec 1210 in Llanbardarn Fawr, Ceredigion, Wales; was buried in Strata Florida Abbey, Ceredigion, Wales. [Group Sheet] [Family Chart]
5. Matilda de Briouze (daughter of William de Briouze and Maud de St. Valéry); died on 29 Dec 1210 in Llanbardarn Fawr, Ceredigion, Wales; was buried in Strata Florida Abbey, Ceredigion, Wales. Children:
- 2. Owain ap Gruffudd ab Yr Arglwydd Rhys died on 18 Jan 1236 in Strata Florida Abbey, Ceredigion, Wales; was buried in Strata Florida Abbey, Ceredigion, Wales.
6. Gwion Sais ap Heilin ap Llywarch ap Gwyn was born about 1170 (son of Heilin ap Llywarch ap Gwyn ap Tewdwr Mawr). Children:
Generation: 4
8. Rhys ap Gruffydd, King of Deheubarth was born about 1132 (son of Gruffydd ap Rhys and Gwenllian ferch Gruffudd); died on 24 Apr 1197; was buried in St Davids Cathedral, St. Davids, Pembrokeshire, Wales. Rhys married Gwenllian ferch Madog. Gwenllian (daughter of Madog ap Maredudd, Prince of Powys Fadog and (Unknown wife or mistress of Madog ap Maredudd)) died in 1160. [Group Sheet] [Family Chart]
9. Gwenllian ferch Madog (daughter of Madog ap Maredudd, Prince of Powys Fadog and (Unknown wife or mistress of Madog ap Maredudd)); died in 1160. Children:
- Gwenllian ferch Yr Arglwydd Rhys died in 1236.
- 4. Gruffudd ab Yr Arglwydd Rhys died on 25 Jul 1201 in Strata Florida Abbey, Ceredigion, Wales; was buried in Strata Florida Abbey, Ceredigion, Wales.
10. William de Briouze was born in of Briouze, Normandy, France (son of William de Briouze and Bertha of Hereford); died on 9 Aug 1211 in Corbeil, near Paris, France. William married Maud de St. Valéry. Maud (daughter of Bernard de St. Valéry and Matilda) was born about 1150; died in 1210 in Windsor, Berkshire, England. [Group Sheet] [Family Chart]
11. Maud de St. Valéry was born about 1150 (daughter of Bernard de St. Valéry and Matilda); died in 1210 in Windsor, Berkshire, England. Children:
- William de Briouze died in 1210 in Windsor, Berkshire, England.
- Reynold de Briouze was born in of Abergavenny, Monmouthshire, Wales; died between 1227 and 1228.
- Bertha de Briouze
- 5. Matilda de Briouze died on 29 Dec 1210 in Llanbardarn Fawr, Ceredigion, Wales; was buried in Strata Florida Abbey, Ceredigion, Wales.
- Margaret de Briouze was born about 1181; died after 25 Jun 1245.
12. Heilin ap Llywarch ap Gwyn ap Tewdwr Mawr was born about 1100 (son of Llywarch ap Gwyn ap Tewdwr Mawr ap Cadell). Children:
- 6. Gwion Sais ap Heilin ap Llywarch ap Gwyn was born about 1170.