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OSLO, NORWAY - MAY 17: Crown Prince Haakon, and Crown Princess Mette-Marit of Norway, with Princess Ingrid Alexandra, and Prince Sverre Magnus, and Crown Princess Mette-Marits son Marius Borg Hoiby ( Right ), watch the traditional morning children's parade, at their home, Skaugum, in Asker, near Oslo, on Norway's National Day, on May 17, 2015 in Oslo, Norway.(Photo by Julian Parker/UK Press via Getty Images)

OSLO, NORWAY - MAY 17:  Crown Prince Haakon, and Crown Princess Mette-Marit of Norway, with Princess Ingrid Alexandra, and Prince Sverre Magnus, and Crown Princess Mette-Marits son Marius Borg Hoiby ( Right ), watch the traditional morning children's parade, at their home, Skaugum, in Asker, near Oslo, on Norway's National Day, on May 17, 2015 in Oslo, Norway.(Photo by Julian Parker/UK Press via Getty Images)