FRANKFURT AM MAIN, GERMANY - JUNE 25: (L-R) Queen Elizabeth II, Prince Philip, Duke of Edingburgh and German President Joachim Gauck walk from St. Paul's church to the 'Roemer' on June 25, 2015 in Frankfurt am Main, Germany. The Queen and Prince Philip are visiting Frankfurt St. Pauls church and the city hall 'Roemer' during theire trip, wich is their first to Germany since 2004. (Photo by Thomas Lohnes/Getty Images)