Family Group Sheet| HUSBAND | | Llywelyn "Llywelyn Fawr, Llywelyn the Great" ap Iorwerth (933R-4XV) | | BIRTH | 1173 | Aberffraw Castle, Gwynedd, Anglesey, Wales | | DEATH | 11 April 1240 | Aberconwy Abbey, Conwy, Conwy County, North Wales | | REF # | | 12300348; | | REF # | | | | REF # | | 60; | | MARRIAGE | 23 March 1204 | | | MARRIAGE | 1194 | Tangwystl ferch Llywarch (LRPJ-5NH); (not married) Wales | | MARRIAGE | 1239 | Eve FitzWarin; | | FATHER | Iorweth "Drwyndwn" Gwynedd (9ZH7-FWJ) | | MOTHER | Marared ferch Madog (9CM9-HB5) | | | | WIFE | | Joan "Lady of Wales, Lady of Snowdon" FitzJohn (GKW2-XVH) | | BIRTH | before 1189 | London, Middlesex, England | | DEATH | 2 February 1237 | Aberystwyth (Aber), Ceredigion, Dyfed, Wales | | REF # | | 8764122; | | REF # | | | | REF # | | 60; | | FATHER | John Plantagenet (GT31-8DD) | | MOTHER | Clementia Unknown |
| | | CHILDREN | | 1. | Gwladus "Ddu, Princess of North Wales" ferch Llywelyn (937M-CS7) FEMALE | | | BIRTH | about 1205 | Wales, Caernarvonshire, Wales | | DEATH | about 1251 | Windsor, Berkshire, England, England | | REF # | | 12351333; | | REF # | | 13164145; | | REF # | | 60; | | MARRIAGE | 1221 | Sir Reynold "Lord of Abergavenny" Braose (99LP-BYW); , , , Wales |
| | 2. | Ellen "the Elder; Ellen of Wales" ferch Llewelyn (9M4C-27W) FEMALE | | | BIRTH | about 1208 | Gwynedd, Wales | | DEATH | before 16 February 1253 | Cardiganshire, Wales | | REF # | | 8096122; | | REF # | | 8449490; | | REF # | | 60; | | MARRIAGE | 1222 | John "9th Earl of Huntingdon and 7th Earl of Chester" Huntingdon (LH24-BG8); | | MARRIAGE | 6 June 1237 | Robert Quincy (9HN3-NZW); |
| | 3. | Angharad Llewellyn (MZHS-YDC) FEMALE | | | BIRTH | about 1212 | Wales | | DEATH | about 1260 | Wales | | REF # | | 7963720; | | REF # | | 8304416; | | REF # | | 60; |
| | 4. | Dafydd "David, Mawr" ap Llywelyn (MDHK-SSC) MALE | | | BIRTH | March 1212 | Castell Hen Blas, Coleshill, Wales | | DEATH | 25 February 1246 | Abergwyngregyn, Wales | | REF # | | 10151232; | | REF # | | 10723977; | | REF # | | 60; |
| | 5. | Agatha Verch Llywelyn (GLRF-L3S) FEMALE | | | BIRTH | 1214 | Caernarvonshire, Wales | | DEATH | 1217 | Wales | | REF # | | 882701; | | REF # | | 903179; | | REF # | | 60; |
| | 6. | Susanna ferch Llywelyn (GFJL-XQH) FEMALE | | | BIRTH | about 1216 | Gwynedd, Wales | | REF # | | 12440259; | | REF # | | 13262796; | | REF # | | 60; |
| | 7. | Tegwared Ap Llewelyn (GQ64-R62) MALE | | | BIRTH | about 1235 | Dolgelly, Merionethshire, Wales | | DEATH | about 1285 | Dolgelly, Merionethshire, Wales | | REF # | | 10416837; | | REF # | | 11017146; | | REF # | | 60; |
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