Gwenlyfan Verch Adda

Gwenlyfan's father was Adda Goch Ap Ieuaf and her mother was Angharad Verch Dafydd.  Her paternal grandparents were Ieuaf Ap Adda and Myfanwy Verch Madoc; her maternal grandfather was Dafydd Ap Adda.  She was an only child.