Griffith ap Conan had issue Owen Gwynedd, Cadwaladr and Gwenllian = G. ap Rees.
Owen Gwynedd had issue Iorwerth and David I.
Iorwerth had issue Llywelyn the Great.
Llywelyn the Great had issue Griffith and David II.
Griffith had issue Llywelyn the Last, Owen the Red, David and Rhodri.
Llywelyn the Last = Eleanor de Montfort and had issue Gwenllian.
Rhodri had issue Thomas who had issue Owen of Wales.
[136b] This table contains the following genealogy:
Rees ap Tudor had issue Griffith and Nest.
Griffith had issue The Lord Rees.