LONDON, UNITED KINGDOM - MARCH 01: Catherine, Duchess of Cambridge and Camilla, Duchess of Cornwall watch as Queen Elizabeth II unveils a plaque commemorating the restoration of Piccadilly outside Fortnum & Mason store on March 1, 2012 in London, England. Together with Camilla, Duchess of Cornwall and Catherine, Duchess of Cambridge, the Queen met military personnel and staff, viewed the store's Diamond Jubilee product ranges and unveiled a plaque for the restoration of Piccadilly.  (Photo by Jeff Spicer - WPA Pool/Getty Images)