Gwilym ap Tudur Welsh landowner and administrator (fl. 1380–1413) (1350–1413) Parents Tudur ap Goronwy Marged ferch Tomos Children Siblings Rhys ap Tudur Gronwy Fychan ap Tudur Fychan ap Gronwy of Penmynydd Angharad ferch Tudur ap Gronwy ap Tudur Hên Goronwy Fychan ap Tudur Gwerful ferch Tudur Fychan ap Gronwy Ednyfed ap Tudor ap Gronwy Maredudd ap Tudur Sir John de la Pole (Mawddwy), Lord of Mawddwy (Mowthwy)