Crown Prince Philippe of Belgium (C) poses with Japanese Prince Naruhito (R) and Princess Masako (L) upon their arrival for a reception at the Belgian Embassy, on May 25, 1994, in Tokyo. Philippe of Belgium is the eldest child and eldest son of King Albert II and Queen Paola, born on April 15, 1960 and heir to the crown of Belgium (Photo credit should read TOSHIFUMI KITAMURA/AFP/Getty Images)

Crown Prince Philippe of Belgium (C) poses with Japanese Prince Naruhito (R) and Princess Masako (L) upon their arrival for a reception at the Belgian Embassy, on May 25, 1994, in Tokyo. Philippe of Belgium is the eldest child and eldest son of King Albert II and Queen Paola, born on April 15, 1960 and heir to the crown of Belgium        (Photo credit should read TOSHIFUMI KITAMURA/AFP/Getty Images)