Harald V, (born February 21, 1937, Skaugum, Norway), king of Norway from 1991, succeeding his father, Olav V.

Harald was the youngest of three children born to Olav and Crown Princess Märtha. However, as the only son he became crown prince when his father assumed the throne in 1957. Harald attended the Norwegian Military Academy and Balliol College, Oxford, and attained the rank of captain in three branches of his country’s armed forces. Like his father he was a fine athlete and excelled at yachting.

Harald’s courtship of a commoner, Sonja Haraldsen, caused some controversy, and he reportedly threatened to never wed if the couple were prevented from marrying. Olav eventually gave his consent, and, after some nine years of dating, the pair were married on August 29, 1968. Harald and Sonja had two children, Märtha Louise (born 1971) and Haakon Magnus (born 1973).

Harald became king of Norway upon the death of his father on January 17, 1991. Although the succession law had been changed in 1990—with the eldest child, whether male or female, assuming the throne—it applied only to those born subsequently, and thus Haakon became crown prince. Like the duties of other Scandinavian monarchs, Harald’s were largely ceremonial.