Genealogy of the Bryan and Martin Families
Bleddyn
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| Gwenwynwyn, Lord of Powis | |
| D: | cir 1218 |
Margaret Corbet
-1220
| Margaret Corbet | |
| D: | cir 1220 |
| Owen Cyfeiliog, Prince of Powis | |
| D: | 1197 |
Gwenllian
-1200
| Gwenllian | |
| D: | cir 1200 |
Gruffydd
-1165
| Gruffydd | |
| D: | cir 1165 |
Gwertyl
-1165
| Gwertyl | |
| D: | cir 1165 |
| Meredith, Prince of Powis | |
| D: | cir 1135 |
Efa
-1135
| Efa | |
| D: | cir 1135 |
Bleddyn
-1100
| Bleddyn | |
| D: | cir 1100 |
unknown
-1100
| unknown | |
| D: | cir 1100 |