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
Johanna Beatrix of Dietrichstein aged 51. Johanna Beatrix of Dietrichstein Countess Johanna Beatrix von Dietrichstein (1625 – 26 March 1676), was a German noblewoman, by birth a member of the princely Dietrichstein family and by marriage Princess of Liechtenstein. She was the fifth child and fourth (but third surviving) daughter of Maximilian, 2nd Prince von Dietrichstein zu Nikolsburg, and his first wife Princess Anna Maria, a daughter of Karl I, Prince of Liechtenstein, Duke of Troppau and Jägerndorf. On 4 August 1644 Johanna Beatrix married Karl Eusebius, Prince of Liechtenstein (11 April 1611 – 5 April 1684). They had eleven children: Johanna Beatrix died