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 | 1194 | (not married) Wales | | MARRIAGE | 23 March 1204 | Joan "Lady of Wales, Lady of Snowdon" FitzJohn (GKW2-XVH); | | MARRIAGE | 1239 | Eve FitzWarin; | | FATHER | Iorweth "Drwyndwn" Gwynedd (9ZH7-FWJ) | | MOTHER | Marared ferch Madog (9CM9-HB5) | | | | WIFE | | Tangwystl ferch Llywarch (LRPJ-5NH) | | BIRTH | about 1168 | Denbighshire, Wales | | DEATH | about 1226 | Caernarvonshire, Wales | | REF # | | 12317323; | | REF # | | | | REF # | | 60; | | FATHER | Llywarch ap Iorwerth (GX26-6V7) | | MOTHER | Tangwystl Llywarch (GJZD-MW3) |
| | | CHILDREN | | 1. | Gruffydd ap Llywelyn (LVFG-386) MALE | | | BIRTH | about 1198 | Gwynedd, Wales | | DEATH | 1 March 1244 | Tower Of London, England | | REF # | | 12341808; | | REF # | | 13153689; | | REF # | | 60; |
| | 2. | Gwenllian ferch Llywelyn (LCTX-HCN) FEMALE | | | BIRTH | about 1209 | Abergwyngregyn, Gwynedd, Wales | | DEATH | before 14 November 1281 | Windsor, Berkshire, England | | REF # | | 12429264; | | REF # | | 13250395; | | REF # | | 60; | | MARRIAGE | | William Lacy (LHL1-1XQ); |
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