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)