Gwerfull ferch Hywel Peerage person ID=659680 Parents Hywel ap Madog Margaret ferch Gruffudd Erddylad ferch Gruffudd Children Dafydd Holland Siblings Lowri ferch Hywel ap Madog ab Ieuan Myfanwy ferch Hywel ap Madog Madog ap Hywel ap Madog Rhys ap Hywel Gruffudd ap Hywel