Norway's Crown Princess Mette-Marit and Crown Prince Haakon; their children, Princess Ingrid Alexandra and Prince Sverre Magnus; and Mette-Marit's son Marius Borg Høiby (right) celebrate National Day on May 17, 2015 in Asker, Norway. (Photos by Julian Parker)
Crown Prince Haakon, Prince Sverre Magnus, Crown Princess Mette-Marit, Princess Ingrid Alexandra, Queen Sonja, and King Harald V on the balcony of the Royal Palace in Oslo.