Beatrix of the Netherlands the Netherlands on 2 August 1945. Beatrix went to the progressive primary school "De Werkplaats" in Bilthoven. Her third sister Princess Christina was born in 1947. On 6 September 1948, her mother Juliana succeeded her grandmother Wilhelmina as Queen of the Netherlands, and Beatrix became the heiress presumptive to the throne of the Netherlands at the age of ten. In April 1950, Princess Beatrix entered the Incrementum, a part of Baarnsch Lyceum, where, in 1956, she passed her school-graduation examinations in the subjects of arts and classics. In 1954, Princess Beatrix served as bridesmaid at the wedding of Baroness van
Beatrix Lyall 1914, she became Beatrix Lyall when her husband changed his surname by deed poll, assuming his mother's maiden name. They settled in Chelsea, London and had a son, Archibald, and a daughter, Christina Marion. By 1914, Beatrix Lyall was known in her role as leader of the Mothers Union, and was noted for her public speaking skills and her campaigning for child welfare. During the war she gave her services to a number of government departments and served on the War Savings Committee. She gave addresses to munitions workers and miners which were published by the British Women's Patriotic League.