McDonnell then says act would be ‘a useful form of street entertainment'

Jeremy Corbyn’s Shadow Chancellor once ‘joked’ that he wanted to see the public execution of members of the Royal Family – represented by papier-mâché models.

Footage has emerged on YouTube which shows John McDonnell, speaking shortly after Prince William’s wedding in 2011, saying that he had been ‘looking forward’ to seeing a friend of his – the political activist Chris Knight who has also campaigned against bankers – use a guillotine on the figures.

Mr McDonnell can be heard describing such action as ‘a useful form of street entertainment which might have balanced out the coverage of the Royal Wedding’.

Tory MP Andrew Rosindell said: ‘This is the latest example of the casual disregard for the Monarchy at the top of the Labour Party.’

John McDonnell is heard saying that he had been ‘looking forward’ to seeing a friend of his – the political activist Chris Knight, shown, who has also campaigned against bankers – use a guillotine on the figures