| | Roger II deMortimer 1231–… | | | | Ralph deMortimer 1190–1246 Gwladys Ddu ferch Llywellyn Aberffraw 1194–… | | | | Roger deMortimer 1158–1214 Millicent deFerrers 1164–1252 | | |
| | | Llywelyn Fawr Aberffraw 1173–1240 Tangwystl ferch Llywarch …–… Joanna of England 1210–1236 | | |
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| | | WilliamV deBraose 1204–1230 | | | | | William the Protector Marshall 1146–1219 Isabelle FitzGilbert deClare 1171–1220 | | |
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