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Sonja Haraldsen, later Queen Sonja of Norway, in Bergen, circa 1967. (Photo by Ray Bellisario/Popperfoto via Getty Images/Getty Images)

Sonja Haraldsen, later Queen Sonja of Norway, in Bergen, circa 1967. (Photo by Ray Bellisario/Popperfoto via Getty Images/Getty Images)

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Crown Prince Harald of Norway and his fiance Sonja Haraldsen at the Henie-Onstad Art Centre in 1968. (Photo by Keystone/Getty Images)

Crown Prince Harald of Norway and his fiance Sonja Haraldsen at the Henie-Onstad Art Centre in 1968. (Photo by Keystone/Getty Images)

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OSLO, NORWAY - MARCH 20: Prince Harald of Norway with his fiancee Sonja Haraldsen, on March 20, 1968 in Oslo, Norway. (Photo by Keystone-France/Gamma-Keystine via Getty Images)

OSLO, NORWAY - MARCH 20: Prince Harald of Norway with his fiancee Sonja Haraldsen, on March 20, 1968 in Oslo, Norway. (Photo by Keystone-France/Gamma-Keystine via Getty Images)

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Crown Prince Harald of Norway pictured with his fiancee Sonja Haraldsen after the announcement of their engagement in Oslo on March 20th 1968. Prince Harald would later become Harald V of Norway. (Photo by Rolls Press/Popperfoto via Getty Images/Getty Images)

Crown Prince Harald of Norway pictured with his fiancee Sonja Haraldsen after the announcement of their engagement in Oslo on March 20th 1968. Prince Harald would later become Harald V of Norway. (Photo by Rolls Press/Popperfoto via Getty Images/Getty Images)

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OSLO, NORWAY - AUGUST 28: The future husband, Prince Harald of Norway, heir to the throne and Sonja Haraldsen wait for the arrival of their guests, on August 28, 1968 in Oslo, Norway. (Photo by Keystone-France/Gamma-Keystine via Getty Images)

OSLO, NORWAY - AUGUST 28: The future husband, Prince Harald of Norway, heir to the throne and Sonja Haraldsen wait for the arrival of their guests, on August 28, 1968 in Oslo, Norway. (Photo by Keystone-France/Gamma-Keystine via Getty Images)