LONDON, ENGLAND - MAY 18:  Prince Philip, Duke of Edinburgh holds the hand of Queen Elizabeth II as she proceeds through the Royal Gallery after she addressed the State Opening of Parliament in the House of Lords at the Palace of Westminster on May 18, 2016 in London, England. The State Opening of Parliament is the formal start of the parliamentary year. This year's Queen's Speech, setting out the government's agenda for the coming session, is expected to outline policy on prison reform, tuition fee rises and reveal the potential site of a UK spaceport. (Photo by Toby Melville - WPA Pool/Getty Images)