Foreign Royalty Personalities. pic: 1929. Crown Prince Olav (Olaf) of Norway pictured with Princess Martha of Sweden after they had announced their engagement. Crown Prince Olav (1903-1991) succeeded his father King Haakon VII in 1957 becoming King Olav [Getty Images]

Foreign Royalty, Personalities, pic: 1929, Crown Prince Olav (Olaf) of Norway pictured with Princess Martha of Sweden after they had announced their engagement, Crown Prince Olav (1903-1991) succeeded his father King Haakon VII in 1957 becoming King Olav V (Photo by Haynes Archive/Popperfoto via Getty Images/Getty Images) — see more

Foreign Royalty, Personalities, pic: 1929, Crown Prince Olav (Olaf) of Norway pictured with Princess Martha of Sweden after they had announced their engagement, Crown Prince Olav (1903-1991) succeeded his father King Haakon VII in 1957 becoming King Olav V (Photo by Haynes Archive/Popperfoto via Getty Images/Getty Images)