Fifty-nine years ago today, on March 10, 1966 (February 19, 1966), Princess Beatrix of the Netherlands married a former West German diplomat. On March 10, 1966, Princess Beatrix of the Netherlands (now Queen of the Netherlands) married the former German diplomat Klaus von Amsberg in Amsterdam, which caused protests from leftists and pacifists in the Netherlands because the groom was German, who had invaded the Netherlands during World War II.