Born using the game titles of Princess Beatrix Wilhelmina Armgard of holland, Princess of Lippe-Biesterfeld, and Princess of Orange-Nassau, she became Queen of holland in 1980 and reigned until 2013. In her early adulthood, she analyzed legislation, economics, and sociology at Leiden University or college. Throughout a 2009 parade, she and her family became the focuses on of an assault that wiped out seven bystanders. Her relationship to German-born diplomat Claus von Amsberg started in 1966 and led to three kids: Princes Johan Friso and Constantijn and the near future Ruler Willem-Alexander. Her mom, Queen Juliana of holland, ruled from 1948 until 1980.