Crown Princess Martha of Norway, the mother of King Harald, was born on this day in 1901. The daughter of Prince Carl of Sweden, Duke of Västergötland, and Princess Ingeborg of Denmark, her sisters were Princess Margretha of Denmark and Queen Astrid of Belgium. In 1929, Princess Martha married Crown Prince Olav of Norway, son of King Haakon and Queen Maud of Norway. The couple had three children; Princess Ragnhild, Princess Astrid, and Prince Harald. During the Nazi Occupation of Norway in WWII, Crown Princess Martha fled first to Sweden and then the United States, while her husband widowed father-in-law established a government-in-exile in London. After their return in 1945, she served as the First Lady of the Kingdom, a hostess for King Haakon. However, she died after a long battle with cancer in 1954, three years before her husband succeeded to the throne as King Olav V.