Britain's Princess Kate, the Duchess of Cambridge, and Britain's Prince William, Duke of Cambridge arrive for a reception at 'Claerchens Ballhaus' dance hall in Berlin, on the second day of the British royal couple visit to Germany, on July 20, 2017 in Berlin.   / AFP PHOTO / POOL / Britta Pedersen        (Photo credit should read BRITTA PEDERSEN/AFP/Getty Images)