Gruffyd dervas , Esquire to Henry VI

Gruffyd was born in Caerynwch, Merioneth, Wales.  Gruffyd's father was Meyrick Lloyd Ap Meyrick Vychan Ap Ynyr Vychan and his mother was Mallt Pickhill.  His paternal grandparents were Meurig Vychan Ap Ynyr Vychan Ap Ynyr and Angharad Verch Gruffydd Ap Owen Ap Bleddyn; his maternal grandfather was Howel Pickhill. He had a sister named Gwenhwyfer.

They had a daughter named Mallt.