Genealogy of the Bryan and Martin Families
unknown
- 1140(
= Descendancy chart to this point, 
= Expand, 
= Collapse)
- 1 unknown [1] d. cir 1140
- Llowarch, of Pembroke d. cir 1140
- 2 Gwladys [1.1] d. cir 1170
- Owen Gwynnedd d. 1169
- 3 Gwenllian [1.1.1] d. cir 1200
- Owen Cyfeiliog, Prince of Powis d. 1197
- 4 Gwenwynwyn, Lord of Powis [1.1.1.1] d. cir 1218
- Margaret Corbet d. cir 1220
- 5 Griffith, of Powis [1.1.1.1.1] b. cir 1230
[ =>]
- 5 Griffith, of Powis [1.1.1.1.1]
- 4 Gwenwynwyn, Lord of Powis [1.1.1.1]
- 3 Iorwerth Drwyndwn [1.1.2] d. 1194
- Margaret, of Powys d. cir 1200
- 4 Llewellyn, ap Iorwerth the Great [1.1.2.1] d. 1240
- Joan Plantagenet d. cir 1240
- 4 Llewellyn, ap Iorwerth the Great [1.1.2.1]
- 3 Gwenllian [1.1.1]
- 2 Gwladys [1.1]