Gruffudd ap Gwenwynwyn Prince of Powys Wenwynwyn (1250–1286) Parents Margred ferch Rhys ap Gruffudd ap Rhys Gwenwynwyn Children Margred 'de La Pole' of Wales Llywelyn ap Gruffudd ap Gwenwynwyn Gwilym ap Gruffudd ap Gwenwynwyn Dafydd ap Gruffudd ap Gwenwynwyn ab Owain Owen de la Pole Siblings Madog ap Gwenwynwyn, lord of Mawddwy Partners Hawise Lestrange