[I]n 1966 a Soviet official waited upon the Mayor of Berwick, Councillor Robert Knox, and a peace treaty was formally signed. Mr Knox is reputed to have said "Please tell the Russian people that they can sleep peacefully in their beds." To complicate the issue, some have noted that Knox did not have any authority with regard to foreign relations, and ... may have exceeded his powers as mayor in concluding a peace treaty. The whole curious scenario was the focus of a question on the third series of the gameshow QI.