| | Roger Mortimer 2nd Earl of March 1328–1359 | | |
| | Edmund Mortimer 1306–1331 Elizabeth de Badlesmere 1315–1356 | | |
| | Roger Mortimer 1st Earl of March 1287–1330 Joan de Genville 1285–1356 | | |
| | Edmund Mortimer 1252–1304 Margaret de Fiennes 1265–1334 | | |
| | Richard FitzAlan 10th Earl of Arundel and 10th Earl of Surrey 1306–1376 | | |
| | John le Strange 4th Baron Strange of Blackmere 1332–1361 | | |
| | Edmund FitzAlan 9th Earl of Arundel 1285–1326 Alice de Warenne Countess of Arundel 1287–1338 | | |
| | Richard FitzAlan 8th Earl of Arundel 1266–1301 | | |
| | Isabella Mortimer Countess of Arundel …–1300 John FitzAlan 7th Earl of Arundel 1246–1272 | | |
| | Maud de Braose Baroness Wigmore 1226–1301 Roger Mortimer of Wigmore, 1st Baron Mortimer 1231–1282 | | | | William de Braose 10th Baron Abergavenny 1197–1230 Eve (Eva) Marshall 1203–1246 | | | | Reginald de Braose 1182–1228 Grace de Briwere 1186–1223 | | | | William de Braose 4th Lord of Bramber 1144–1211 Matilda de St. Valery 1155–1210 | | | | William de Braose 1126–1179 Bertha de Gloucester 1130–… | | |
| | | Reginald de St. Valery 1129–… |
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| | | William Marshall 1st Earl of Pembroke 1146–1219 Isabel de Clare 1172–1220 | | | | Richard de Clare 1130–1176 Aoife MacMurrough 1145–1188 | | | | Gilbert de Clare 1100–1147 | | |
| | | Diarmait (Diarmaid, Dermot or Dermod) mac Murchada (mac Murchadha or MacMurrough) 1110–1171 | | |
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| | | Ranulph (Ralph) de Mortimer 1198–1246 Gwladus Ddu ferch Llyweyn …–1251 | | | | Llywelyn Fawr ab Iorwerth 1173–1240 | | | | Iorwerth ab Owain Gwynedd 1145–1174 | | | | Owain Gwynedd ap Gruffydd 1100–1170 Gwladys (Gladys) ferch Llywarch …–… | | |
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| | | Llywarch Goch … of Rhos …–… |
| | | King of England John … 1167–1216 | | | | King of England Henry II … 1133–1189 Rosamunde of Clifford … …–… | | |
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