Margred (2) ferch Rhys Ieuanc ap Rhys Mechyll ap Rhys Gryg Parents Rhys Fychan ap Rhys Mechyll ap Rhys Grûg ap Lord Rhys of Dinefwr, aka Rhys Ieuanc Gwladus ferch Gruffudd ap Llywelyn Children Margred ferch Madog Crupl ap Gruffudd Farwn Siblings Ithel Fychan, lord of Mostyn Margaret ferch Rhys Ieunac NN ferch Rhys Ieuanc ap Rhys Mechyll