BERLIN, GERMANY - JULY 19: Catherine, Duchess of Cambridge and Prince WIlliam, Duke of Cambridge visit The Brandenburg Gate on day 3 of their Royal Tour of Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Karwai Tang/WireImage)
BERLIN, GERMANY - JULY 19: Catherine, Duchess of Cambridge and Prince WIlliam, Duke of Cambridge visit The Brandenburg Gate on day 3 of their Royal Tour of Poland and Germany on July 19, 2017 in Berlin, Germany. (Photo by Karwai Tang/WireImage)