Belgium's King Philippe (2nd L) and Queen Mathilde (L) are greeted by Japan's Emperor Akihito and Empress Michiko (2nd R) upon their arrival at the Imperial Palace for a banquet in Tokyo on October 11, 2016. / AFP / POOL / KIMIMASA MAYAMA (Photo credit should read KIMIMASA MAYAMA/AFP/Getty Images)

Belgium's King Philippe (2nd L) and Queen Mathilde (L) are greeted by Japan's Emperor Akihito and Empress Michiko (2nd R) upon their arrival at the Imperial Palace for a banquet in Tokyo on October 11, 2016. / AFP / POOL / KIMIMASA MAYAMA        (Photo credit should read KIMIMASA MAYAMA/AFP/Getty Images)