The birthday of Mette-Marit, Crown Princess of Norway, is observed in Norway every August 19. This date is significant as it is an official flag flying day in the country, celebrating the Crown Princess, who was born Mette-Marit Tjessem Høiby in 1973. Mette-Marit became Crown Princess upon her marriage to Crown Prince Haakon on August 25, 2001, and she is a member of the Royal Family. The couple has two children, Princess Ingrid Alexandra and Prince Sverre Magnus. Mette-Marit is noted for her previous rebellious phase and being a single mother before her relationship with Haakon, which has drawn mixed opinions from the public. The day is marked by various celebrations and recognition of her contributions to the Royal Family and Norway.