Ellyw ferch Thomas ap Gwgon ap Gwgon ap Bleddyn
1170 - 1218 (–)
Children
- Llywelyn ap Rhys Gryg ap Rhys ap Gruffudd, aka Llywelyn Ddiriaid II
- Ales ferch Rhys Grûg ap Rhys
- NN ferch Rhys Gryg ap Rhys ap Gruffudd
- Hywel ap Rhys Gryg, lord of Llandderog
- Arddun ap Rhys Gryg ap Rhys
- Jonet ferch Rhys Gryg ap Rhys
- Gwenllian Gethin ferch Rhys Gryg
- Rhys Mechyll
- Ieuan ap Rhys Gryg ap Rhys of Llanfihangel Cwm Du
- Maredudd ap Rhys Gryg
- Ellyw ferch Rhys Gryg