Marged ferch Tomos grandmother of Owen Tudor, wife of Tudur ap Goronwy (d. 1367) (b. 1340) Parents Thomas ap Llewellyn NN Children Maredudd ap Tudur Gwilym ap Tudur Ednyfed ap Tudor ap Gronwy Sir John de la Pole (Mawddwy), Lord of Mawddwy (Mowthwy) Rhys ap Tudur Siblings Maredudd ap Thomas ap Llywelyn ab Owain Elen ferch Thomas ap Llywelyn ab Owain ap Maredudd Partners Tudur ap Goronwy