Who reformed royal administration, such as William de Ros, during his rein as King?
Edward I of England: Edward I (17/18 June 1239 – 7 July 1307), also known as Edward Longshanks and the Hammer of the Scots (Latin: "Malleus Scotorum" ), was King of England from 1272 to 1307. Edward I of England:  He spent much of his reign reforming royal administration and common law.
i don't know