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OSLO, NORWAY - MAY 17: Crown Prince Haakon of Norway, Princess Ingrid Alexandra of Norway, Crown Princess Mette-Marit of Norway, Queen Sonja of Norway and King Harald V of Norway celebrate National Day on May 17, 2016 in Oslo, Norway. (Photo by Ragnar Singsaas/Getty Images)

OSLO, NORWAY - MAY 17: Crown Prince Haakon of Norway, Princess Ingrid Alexandra of Norway, Crown Princess Mette-Marit of Norway, Queen Sonja of Norway and King Harald V of Norway celebrate National Day on May 17, 2016 in Oslo, Norway.  (Photo by Ragnar Singsaas/Getty Images)