Former health minister Alan Johnson accidentally ate dog biscuits meant for the Queen's corgis during a lunch at Windsor Castle, a new book has revealed.
While sitting next to Her Majesty, Mr Johnson happily tucked into cheese on "unusual dark biscuits" before his colleague Paul Murphy informed him the Queen had laid them out for her dogs.
Royal biographer Robert Hardman has recalled the anecdote in his new book Queen of Our Times, where he shares the full life story of the Queen ahead of her Platinum Jubilee celebrations.