Seisyll
(Notes: You may have to scroll down or right to see chart.)
| Maredudd Ap Gruffydd | |
| D: | 1069 |
| Idwal Ap Gruffydd | |
| D: | 1069 |
| Gruffydd Ap Llywelyn | |
| B: | Abt 1007 |
| D: | 5 Aug 1063 |
| Edith of Mercia | |
| B: | England |
| D: | Aft 1070 |
| Llywelyn Ap Seisyll | |
| D: | 1023 |
(Notes: You may have to scroll down or right to see chart.)
| Maredudd Ap Gruffydd | |
| D: | 1069 |
| Idwal Ap Gruffydd | |
| D: | 1069 |
| Gruffydd Ap Llywelyn | |
| B: | Abt 1007 |
| D: | 5 Aug 1063 |
| Edith of Mercia | |
| B: | England |
| D: | Aft 1070 |
| Llywelyn Ap Seisyll | |
| D: | 1023 |
