DOHA, QATAR - OCTOBER 21: Prince Pieter Christiaan Van Oranje nassau of the Netherlands visits the Opening Ceremony of the IPC Athletics World Championships Doha with the Dutch Team (L-R) Marc Kroon, Yvette Eechout, Guido Bonsen, Petra Langereis, Purcy Marthe, Prince Pieter Christiaan, Frank Jol, Coen Vuijck, Arno Mul and Ursula Kroder at Katara Cultural Village on October 21, 2015 in Doha, Qatar.  (Photo by Helene Wiesenhaan/Getty Images)