Beatrix of the Netherlands Athlone; Elisabeth, Princess of Erbach-Schönberg; Duke Adolf Friedrich of Mecklenburg; and Countess Allene de Kotzebue. Beatrix's middle names are the first names of her maternal grandmother, the then reigning Queen Wilhelmina, and her paternal grandmother, Armgard of Sierstorpff-Cramm. When Beatrix was one year old, in 1939, her younger sister Princess Irene was born. World War II broke out in the Netherlands on 10 May 1940 (Westfeldzug). On 13 May, the Dutch Royal Family evacuated to London, United Kingdom. One month later, Beatrix went to Ottawa, Ontario, Canada, with her mother Juliana and her sister Irene, while her father Bernhard and
Beatrix of the Netherlands degree from Leiden University. In 1966, Beatrix married Claus von Amsberg, a German diplomat, with whom she had three children. When her mother abdicated on 30 April 1980, Beatrix succeeded her as queen. Beatrix's reign saw the country's Caribbean possessions reshaped with Aruba's secession and becoming its own constituent country within the Kingdom in 1986 as well as the subsequent Antillean Dissolution in 2010, which created the new special municipalities of Bonaire, Sint Eustatius, and Saba, and the two new constituent countries of Curaçao and Sint Maarten. On Koninginnedag ("Queen's Day"), 30 April 2013, Beatrix abdicated in favour of her