Britain's Prince William, the Duke of Cambridge (L) and his wife Princess Kate, the Duchess of Cambridge, listen to Andreas Goebes of the bakers guild Heidelberg (R), before they start forming pastry to prezels during their visit of the market in the historic center of southern German town of Heidelberg on July 20, 2017. 
The British royal couple is on a three-day visit in Germany. / AFP PHOTO / POOL AND AFP PHOTO / THOMAS KIENZLE        (Photo credit should read THOMAS KIENZLE/AFP/Getty Images)