The Barons' Letter of 1301 was written by seven English earls and 96 English barons to Pope Boniface VIII as a repudiation of his claim of feudal overlordship of Scotland (expressed in the Bull Scimus Fili), and as a defence of the rights of King Edward I of England as overlord of Scotland. It was, however, never sent. The letter survives in two copies, known as A and B, both held in the National Archives at Kew under the reference E 26. Historically they were held amongst the documents in the Exchequer, Treasury of the Receipt department.