 In September 1278 , lands were granted by King Edward I of England to Tudur and his brothers . The majority of the noble houses in Wales sided with the Welsh forces during the English invasion of Gwynedd , but Edward proclaimed that any who joined him would retain their lands and titles under the English crown . Tudur Hen retained his prestige and lands following the death of Llywelyn in 1282 and the victory of the English . Tudur and his brother Goronwy were two of those lords who backed the rebellion of Madog ap Llywelyn against the English in 1294 – 95 . Tudur acted as steward to Madog , while Goronwy was in his service . 
