| | Roger IV deMortimer 1328–1359 | | |
| | Edmund II deMortimer …–1331 | | |
| | Roger III deMortimer 1287–1330 | | |
| | Edmund de Mortimer 1261–1304 | | |
| | Richard Copped-Hat Fitzalan Earl of Arundel 1306–1375 Eleanor of Lancaster 1318–1372 Isabel Despencer 1312–1344 | | |
| | Edmund Fitzalan Earl of Arundel 1285–1326 | | |
| | Richard FitzAlan Earl of Arundel 1266–1301 Alasia of Saluzzo 1271–1292 | | |
| | JohnII FitzAlan Earl of Arundel 1246–1271 | | |
| | Roger II deMortimer 1231–… | | | | WilliamV deBraose 1204–1230 | | | | | | | | WilliamIII Baron deBraose …–… | | | | WilliamII deBraose …–1192 | | |
| | | BernardIV of St.Valery …–… |
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| | | William the Protector Marshall 1146–1219 Isabelle FitzGilbert deClare 1171–1220 | | | | John FitzGilbert Marshall 1126–1165 | | | | Gilbert Marshal 1075–1130 | | |
| | | Walter FitzEdward deSalisbury The Sheriff 1100–1147 Sibyl deChaworth 1082–1147 | | |
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| | | Richard Strongbow deClare Earl of Pembroke 1130–1176 Eva MacMurrough 1115–1186 | | | | Gilbert Strongbow FitzGilbert deClare 1100–1148 Elizabeth deBeaumont 1104–1172 | | |
| | | Diarmait na-nGall MacMurrough King of Leinster 1100–1171 | | |
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| | | Ralph deMortimer 1190–1246 Gwladys Ddu ferch Llywellyn Aberffraw 1194–… | | | | Roger deMortimer 1158–1214 Millicent deFerrers 1164–1252 | | | | Hugh deMortimer 1108–1184 | | | | Ralph deMortimer 1082–1105 | | |
| | | William leMeschines 1096–… | | |
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| | | WalkelinII Seigneur deFerriers …–… | | |
| | | William deFerrers Earl of Derby 1130–1189 | | | | Robert deFerrers 1100–1160 | | |
| | | WilliamII deBraose …–1192 | | |
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| | | Llywelyn Fawr Aberffraw 1173–1240 Tangwystl ferch Llywarch …–… Joanna of England 1210–1236 | | | | Iowerth Drwyndwn Gwynedd 1130–1174 | | | | Owain Fawr Gwynedd 1087–1169 Gwladys ferch Llywarch …–… | | |
| | | Madog Powys ap Maredydd …–… Susanna verch Gruffydd 1095–… | | |
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| | | John Lackland King of England 1166–1216 Isabella Taillefer of Angouleme 1188–1246 | | | | HenryII King of England 1133–1189 Eleanor Duchess of Aquitaine 1122–1204 | | |
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