Patent Roll 1266-72: p394
16. Whereas the king lately committed during pleasure to Bartholomew de Castello and Richard de Baunfeld the keeping of the king's changes of London and Canterbury, he now wills that the said Bartholomew have the keeping of the same, so that-he answer at the Exchequer for the issues thereof, and commands the said Richard not to intermeddle therein.
Mandate in pursuance to the said Richard.