*Hywel ap Dafydd
born Nanconwy, Arllechwedd, Caernarvonshire, Wales

father:
*Dafydd ap Gruffudd
born Nanconwy, Arllechwedd, Caernarvonshire, Wales

mother:
*Efa verch Gruffudd
born Penyfed, Dolbenmaen, Caernarvonshire, Wales

siblings:
*Dafydd "Chwith" ap Dafydd born Nanconwy, Arllechwedd, Caernarvonshire, Wales died after 1334

spouse:
*Efa verch Ieuan
born Henllys, Cefn-y-fan, Caernarvonshire, Wales

children:
*Angharad verch Hywel
born Caernarvonshire, Wales

biographical and/or anecdotal:

notes or source:
LDS
research of S. E. Oman Salt Lake City