HAMBURG, GERMANY - JULY 21: Klaus Richter, Chief Procurement Officer for Airbus, Catherine, Duchess of Cambridge, Marco Wagner, HR Director for Airbus Germany, Prince William, Duke of Cambridge and Hamburg Mayor Olaf Schulz are seen on a tour of the Airbus training facilities on the third and final day of their visit to Germany on July 21, 2017 in Hamburg, Germany. The Duke and Duchess of Cambridge will meet with apprentices, and view the final assembly line of an A321 aircraft. (Photo by Alexander Koerner/Getty Images)
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HAMBURG, GERMANY - JULY 21: Klaus Richter, Chief Procurement Officer for Airbus, Catherine, Duchess of Cambridge, Marco Wagner, HR Director for Airbus Germany, Prince William, Duke of Cambridge and Hamburg Mayor Olaf Schulz are seen on a tour of the Airbus training facilities on the third and final day of their visit to Germany on July 21, 2017 in Hamburg, Germany. The Duke and Duchess of Cambridge will meet with apprentices, and view the final assembly line of an A321 aircraft. (Photo by Alexander Koerner/Getty Images)
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HAMBURG, GERMANY - JULY 21: First Mayor of Hamburg Olaf Scholz (L), with Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge tour of Airbus before bringing their children to see helicopter models H145 and H135 ahead of departing from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by Michael Ukas - Pool/Getty Images)
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HAMBURG, GERMANY - JULY 21: First Mayor of Hamburg Olaf Scholz (2nd-R), with Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge tour Airbus before bringing their children to see helicopter models H145 and H135 ahead of departing from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by Michael Ukas - Pool/Getty Images)
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HAMBURG, GERMANY - JULY 21: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge are seen on a tourof the Airbus training facilities on the third and final day of their visit to Germany on July 21, 2017 in Hamburg, Germany. The Duke and Duchess of Cambridge will meet with apprentices, and view the final assembly line of an A321 aircraft. (Photo by Alexander Koerner/Getty Images)
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Getty Images Entertainment Alexander Koerner