A venue called The Ritz in Northamptonshire has been told to change its name or face legal action by the owners of the famous London hotel.
The wedding and conference venue in Desborough has used the name since the 1930s, but it has now been given until the new year to alter it.
The Ritz hotel has asked for a name-change agreement to be signed.
Desborough Ritz owner Kris Malde said he thought their email was "a joke". The Ritz in London declined to comment.The Desborough Ritz may have traded from the 1930s, but the London Ritz was opened in 1906 by Cesar Ritz ("the cracker magnate", as Lord Bonkers describes him).