A commoner, the daughter of Charles Augustus Haraldsen, she became engaged to Crown Prince Harald of Norway (now King Harald V) in March 1968, nine years after they began secretly dating. After the crown prince threatened to give up his rights to the throne unless he could marry Miss Haraldsen, they married on August 29, 1968, in Oslo, and she became Crown Princess of Norway.
Following the death of King Olav V, she became Norway's first queen in 53 years on January 17, 1991. She is now formally titled Her Majesty Queen Sonja, or simply Her Majesty the Queen.
She and King Harald have two children, Princess Märtha Louise and Crown Prince Haakon.
King Harald V and Queen Sonja have four grandchildren: HRH Princess Ingrid Alexandra of Norway, Prince Sverre Magnus of Norway (born 3 December 2005), Maud Angelica Behn and Leah Isadora Behn.