Norwegian Princess Martha Louise (3nd L) and her husband Ari Behn (4th L) wave from the balcony of Trondheim's Stiftsgarden royal residence after their wedding ceremony May 24, 2002. From left are King Harald, Queen Sonja, Princes Martha Louise, Ari Behn, Marianne Solberg Behn and Olav Bjorshol (Ari Behn`s father). The popular princess, daughter of King Harald V and Queen Sonja, has married the controversial writer Ari Behn, 29, on Friday in the west coast city of Trondheim, an ancient seat of power and religion about 300 kilometers (180 miles) north of the capital, Oslo.