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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)