Gruffudd ap Llywelyn Peerage person ID=659689 (1000–1063) Parents Llywelyn ap Hwlcyn Mali ap Ieuan Children Jonet ferch Gruffudd John (I) ap Gruffudd ap Llywelyn ap Hwlcyn Griffith, of Chwaen Hen Siblings Meurig ap Llywelyn Rhys ap Llywelyn ap Hwlcyn Huw ap Llywelyn ap Hwlcyn of Presaddfed
