BERLIN, GERMANY - JULY 20: Prince William, Duke of Cambridge, and Catherine, Duchess of Cambridge, chat with Nils Juergens of Claerchen's as they arrive at a reception at Claerchen's Ballhaus dance hall following a day in Heidelberg on the second day of the royal visit to Germany on July 20, 2017 in Berlin, Germany. The royal couple are on a three-day trip to Germany that includes visits to Berlin, Hamburg and Heidelberg. (Pool Photo by Sean Gallup/Getty Images)
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HEIDELBERG, GERMANY - JULY 20: (NO UK SALES FOR 28 DAYS FROM CREATE DATE) Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attends a reception at Claerchen's Ballhaus dance hall during an official visit to Poland and Germany on July 20, 2017 in Heidelberg, Germany. (Photo by Pool/Samir Hussein/WireImage)
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BERLIN, GERMANY - JULY 20: Prince William, Duke of Cambridge, and Catherine, Duchess of Cambridge, attend a reception at Claerchen's Ballhaus dance hall following a day in Heidelberg on the second day of the royal visit to Germany on July 20, 2017 in Berlin, Germany. The royal couple are on a three-day trip to Germany that includes visits to Berlin, Hamburg and Heidelberg. (Photo by Sean Gallup/Getty Images)
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HEIDELBERG, GERMANY - JULY 20: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge arrive for a reception with creatives at 'Claerchens Ballhaus' the last original dancehall in Berlin on the second day of their visit to Germany on July 20, 2017 in Berlin, Germany. The royal couple are on a three-day trip to Germany that includes visits to Berlin, Hamburg and Heidelberg. (Photo by Sean Gallup - Pool/Getty Images)
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HEIDELBERG, GERMANY - JULY 20: Catherine, Duchess of Cambridge attends a reception with creatives at 'Claerchens Ballhaus' the last original dancehall in Berlin on the second day of their visit to Germany on July 20, 2017 in Berlin, Germany. The royal couple are on a three-day trip to Germany that includes visits to Berlin, Hamburg and Heidelberg. (Photo by Sean Gallup - Pool/Getty Images)
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