As early as the 1220s certain persons are identified as having a specialised role as 'buyer' or 'purveyor' within the King's Wardrobe, and keeping their own accounts. Often the King's tailor had this task (which involved purchase of silk, cloth, furs and the like for robes). A Household Ordinance of 1279 formalised the arrangement, ordaining that the Treasurer (Keeper) of the Wardrobe should appoint a man to buy all items appertaining to the Great Wardrobe, "and let this man be Keeper of the Great Wardrobe". By the 16th century the department had gained a great deal of independence, and its keeper began to be styled Master of the Great Wardrobe.