BERLIN, GERMANY - JULY 19: Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George of Cambridge and Princess Charlotte of Cambridge arrive at Berlin military airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Samir Hussein/WireImage)
BERLIN, GERMANY - JULY 19: Catherine Duchess of Cambridge, Prince William Duke of Cambridge, Princess Charlotte of Cambridge and Prince George of Cambridge during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Isa Foltin/Getty Images)
BERLIN, GERMANY - JULY 19: Princess Charlotte of Cambridge arrives at Berlin Tegel Airport during an official visit to Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Chris Jackson/Getty Images)
WARSAW, POLAND - JULY 17: Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George of Cambridge, Princess Charlotte of Cambridge arrive at Warsaw airport during an official visit to Poland and Germany on July 17, 2017 in Warsaw, Poland. (Photo by Samir Hussein/Samir Hussein/WireImage)
WARSAW, POLAND - JULY 17: Catherine, Duchess of Cambridge, Princess Charlotte of Cambridge arrive at Warsaw airport during an official visit to Poland and Germany on July 17, 2017 in Warsaw, Poland. (Photo by Samir Hussein/Samir Hussein/WireImage)
