Nielsen Hayden genealogy
Llywelyn ap Gruffudd ap Cadwgan ap Meilir Eutun

( = Descendancy chart to this point,
= Expand,
= Collapse)
- 1 Llywelyn ap Gruffudd ap Cadwgan ap Meilir Eutun [1] b. Abt 1230
Angharad ferch Maredudd
- 2 Lleucu ferch Llywelyn ap Gruffudd [1.1]
Iorwerth ap Madog ap Gruffudd ab Owain Brogyntyn
- 3 Madog ab Iorwerth ap Madog ap Gruffudd [1.1.1]
Efa ferch Llywelyn ap Gruffudd
- 4 Gwerfyl ferch Madog [1.1.1.1]
d. Aft 1293 [ =>]
- 4 Gwerfyl ferch Madog [1.1.1.1]
- 3 Madog ab Iorwerth ap Madog ap Gruffudd [1.1.1]
- 2 Lleucu ferch Llywelyn ap Gruffudd [1.1]