King Harold and Queen Sonja, Crown Prince Haakon and Crown Princess Mette-Marit with Princess Ingrid Alexandra and Prince Sverre Magnus during the celebrations of the National Day at the Palace Balcony, Oslo, Norway. 17 May 2019 Pictured: King Harold and Queen Sonja, Crown Prince Haakon and Crown Princess Mette-Marit with Princess Ingrid Alexandra and Prince Sverre Magnus during the celebrations of the National Day at the Palace Balcony, Oslo, Norway. Photo credit: MEGA TheMegaAgency.com +1 888 505 6342