 Tudur Hen ( English : Tudur the Elder ) or Tudur ap Goronwy ( died 11 October 1311 ) was a Welsh aristocrat and a member of the Tudor family of Penmynydd , Anglesey , North Wales . He was one of three sons of Goronwy ab Ednyfed who received lands from King Edward I of England . Nonetheless , he backed the rebellion of Madog ap Llywelyn , but afterwards swore allegiance to both Edward I and his son , Edward of Caernarfon . Tudur Hen was responsible for the restoration of the Franciscan friary at Bangor , Gwynedd , where his body was later placed on 11 October 1311 . 
