Margaret ferch Gruffudd ap Llywelyn Fawr 1229 (b. 1250) Parents Gruffudd ap Llywelyn ab Iorwerth Children Siblings Dafydd ap Gruffudd Gwladus ferch Gruffudd ap Llywelyn Owain Goch ap Gruffydd Rhodri ap Gruffudd Catrin ferch Gruffudd Llywelyn ap Gruffudd