| Llewelyn Ap Iorwerth & Tangwysti Verch Llymarch | |
| Husband | Wife |
| Llewelyn Ap Iorwerth | Tangwysti Verch Llymarch |
|
b: 1173 Aberffraw Castle, Caernarvonshire, Wales d: 11 Apr 1240 |
b: about 1168 Of, Rhos, Denbighshire, Wales |
| Marriage: after 16 Apr 1205 in England. | |
| Parents | |
| Iorwerth Ap Owain (1145 - ~1184) | Llymarch "Goch" Ap Iorwerth (~1139 - ) |
| Margred Verch Madog (~1129 - ) | Tangwysti Verch Llywarch (~1141 - ) |
| Grand Parents | |
| Owain "Gwynedd" Ap Gruffydd (~1087 - 1169) | Iorwerth Ap Cynon (~1114 - ) |
| Gwladus Verch Llywarch (~1098 - ) | Miss Verch Ithel (~1118 - ) |
| Madog Ap Maredydd (~1091 - 1160) | Llywarch Ap Bran (~1107 - ) |
| Susanna Verch Gruffydd (~1095 - ) | Rhael Verch Gronwy (~1111 - ) |
| Children (Family Detail) | |
| Margred Verch Llywelyn | - b: about 1210 Of, Caernarvonshire, Wales |
| Gwaldys Verch Llewelyn | - b: about 1205 Caernarvonshire, Wales |