Gruffudd ap Hywel Peerage person ID=659683 Parents Erddylad ferch Gruffudd Hywel ap Madog Children Siblings Gwerfull ferch Hywel Myfanwy ferch Hywel ap Madog Madog ap Hywel ap Madog Lowri ferch Hywel ap Madog ab Ieuan Rhys ap Hywel