Gwenllian verch Griffith ap Rhys ¹

  Research Notes:

This is most likely incorrect (see Davis, A History of Wales, p. 137).
Source: S Genealogical and Heraldic Dictionary of the Landed Gentry of Great Britain & Ireland" by John Burke & John Bernard Burke, vol. I, London, 1847, p. 736 has:
"Ednyfed Vychan m. 2ndly, Gwenllian, dau. of Rhys ap Griuffith, Lord of South Wales, Representative of the Soverign Pricese of South Wales,... by whom he had issue, I. Grono ap Ednyfed Vychan, Lord of Tref-Gastell, in Anglesea...II.Griffith ap Ednyfed Vychan, of Henglawdd..."

Gwenllian married Ednyfed Fychan ap Cynwrig Lord of Brynffenigl and Krigeth. (Ednyfed Fychan ap Cynwrig Lord of Brynffenigl and Krigeth was born about 1170 and died in 1246.)