LONDON, ENGLAND - MAY 27:  Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall arrive at the Palace of Westminster  during the State Opening of Parliament in the House of Lords, at the Palace of Westminster on May 27, 2015 in London, England. The Queen's Speech is the centrepiece of the State Opening and is expected to see promise of an EU referendum, tax cuts and an extension of Right to Buy in the in the first all-Conservative Queen's Speech since 1996. (Photo by Richard Pohle - WPA Pool/Getty Images)