| Male IORWERTH Llewelyn Ap, Llewelyn the Great |
| Birth | 1173 | Aberffraw Castle, Caernarvonshire, Wales  |
| Death | 11 Apr 1240 | Aberconwy, Arllechwedd Isaf, Caernarvonshire, Wales |
| Burial | ||
| Marriage | 1205 | England |
| Other Spouse | LLYWARCH Tangwystl Verch | F1023 | |
| Marriage | ||
| Father | OWAIN Iorwerth "Drwyndwn" Ap | F1099 Group Sheet | |
| Mother | MADOG Margred Verch | F1099 Group Sheet | |
| Female ENGLAND Joan Princess Of |
| Birth | 1188 | Of, London, Middlesex, England |
| Death | 3 Apr 1236 | Aberconwy, Arllechwedd Isaf, Caernarvonshire, Wales |
| Burial | Llan-Faes, Dindaethwy, Anglesey, Wales |
|
| Father | ENGLAND John "Lackland" King Of | F658 Group Sheet | |
| Mother | Clementia | F658 Group Sheet | |
| Female + LLEWELYN Elen (Helen) Verch |
| Birth | Abt 1206 | Of Caernarvonshire, Wales |
| Death | Bef 24 Oct 1253 | Of, Chester, Cheshire, England |
| Burial | ||
| Spouse | QUINCY Robert De | F1038 | |
| Marriage | ||
| Spouse | MAR Donald Earl Of | F927 | |
| Marriage | Abt 1269 | Of, Kildrummy, Aberdeenshire, Scotland |
| Female LLYWELYN Gwenllian "Las" Verch |
| Birth | Abt 1207 | Of Caernarvonshire, Wales |
| Death | ||
| Burial | ||
| Spouse | LACY William De | F1079 | |
| Marriage | ||
| Male + LLYWELYN Dafydd Ap |
| Birth | Abt 1209 | Of Caernarvonshire, Wales |
| Death | 25 Feb 1246 | |
| Burial | ||
| Spouse | BRAOSE Isabella De | F1145 | |
| Marriage | Abt 1231 | |
| Female + LLYWELYN Margred Verch |
| Birth | Abt 1210 | Of Caernarvonshire, Wales |
| Death | Aft 1263/1264 | Clifford Castle, , Herefordshire, England |
| Burial | Priory Church, Aconbury, Herefordshire, England |
|
| Spouse | BREUSE John De | F1078 | |
| Marriage | 1219 | |
| Female LLYWELYN Angharad Verch |
| Birth | Abt 1212 | Of, , Caernarvonshire, Wales |
| Death | ||
| Burial | ||
| Spouse | MAELGWN Maelgwn "Ieuanc" ("Fychan") Ap | F1035 | |
| Marriage | ||
| Female LLYWELYN Miss Verch |
| Birth | Abt 1214 | Of, , Caernarvonshire, Wales |
| Death | ||
| Burial | ||
| Spouse | CAENTWN William | F1131 | |
| Marriage | ||
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