David ap Llywelyn … …–1246 | | |
| | Roger Mortimer 1st Earl of March 1287–1330 Joan de Genville 1285–1356 | | |
| | Edmund Mortimer 1252–1304 Margaret de Fiennes 1265–1334 | | |
| | Richard FitzAlan 8th Earl of Arundel 1266–1301 | | |
| | Isabella Mortimer Countess of Arundel …–1300 John FitzAlan 7th Earl of Arundel 1246–1272 | | |
| | Roger Mortimer of Wigmore, 1st Baron Mortimer 1231–1282 Maud de Braose Baroness Wigmore 1226–1301 | | |
| | Gwladus Ddu ferch Llyweyn …–1251 Reginald … de Braose …–1228 Ranulph (Ralph) de Mortimer 1198–1246 | | |
| | Llywelyn ap Owain … …–1309 | | |
| | Owain ap Mareddud … …–1275 | | |
| | Maredudd ap Owain … …–1265 | | |
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| | Llywelyn Fawr ab Iorwerth 1173–1240 | | | | King of England John … 1167–1216 | | | | King of England Henry II … 1133–1189 Rosamunde of Clifford … …–… | | | | Geoffrey V … Count of Anjou 1113–1151 Adelaide (Matilda) … 1102–1167 | | | | | King of England Henry I Beauclerc … 1068–1135 Matilda (Edith) … 1079–1118 Adelicia … of Louvain 1105–1151 Elizabeth … de Belloment …–… | | |
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| | | William X … Duke of Aquitaine 1099–1157 Aenor … of Chatellerault …–… | | | | William IX … Duke of Aquitaine 1076–1126 Phillipa … of Toulouse …–… | | |
| | | Aumary I … Viscount of Charellerault 1077–… |
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| | | Iorwerth ab Owain Gwynedd 1145–1174 | | | | Owain Gwynedd ap Gruffydd 1100–1170 Gwladys (Gladys) ferch Llywarch …–… | | | | Gruffydd ap Cynan 1055–1137 Angharad ferch Owain …–1162 | | | | Ragnhildr … of Dublin …–… | | |
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| | | Llywarch ap Trahaearn …–… |
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