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 Berg with the parents. In 1385 Beatrix married the widowed Elector Rupert I von der Pfalz, who had been widowed for 5 years, and who was already 75 years old. Beatrix was the granddaughter of his nephew and successor Rupert II. Elector Rupert I and his second wife Beatrix both resided in Heidelberg, whose university was founded by the Elector, and in Neustadt an der Weinstrasse, where he died in 1390. In the "Allgemeine Deutsche Biographie" it is said about the husband of Beatrix: Even among his contemporaries Rupprecht I stood in high esteem, he was also a respectful figure, knightly