Count Claus-Casimir of Orange-Nassau van Amsberg

Count Claus-Casimir
Count Claus-Casimir of Oranje-Nassau,
Jonkheer van Amsberg
Born (2004-03-21) 21 March 2004
Bronovo Hospital, The Hague, Netherlands
Full name
Claus-Casimir Bernhard Marius Max
House Orange-Nassau
Father Prince Constantijn of the Netherlands
Mother Princess Laurentien of the Netherlands
Religion Protestant Church in the Netherlands

Count Claus-Casimir of Orange-Nassau, Jonkheer van Amsberg (Claus-Casimir Bernhard Marius Max; born 21 March 2004 at Bronovo Hospital in The Hague), is the second child of Prince Constantijn and Princess Laurentien of the Netherlands[1] and their only son. He is a member of the Dutch Royal Family and is sixth in the line of succession to the Dutch throne.[2]

His birth was overshadowed by the death, only a day before, of his great-grandmother, the former Queen Juliana.[3] He is the only grandson of Queen Beatrix and her husband, Claus von Amsberg. He has two sisters: Countess Eloise, born 8 June 2002 and Countess Leonore, born 3 June 2006.

His christening took place in the chapel of Het Loo Palace in Apeldoorn on 10 October 2004.[4] Claus-Casimir's godparents are King Willem-Alexander, Prince Maurits of Orange-Nassau, van Vollenhoven, Ed P. Spanjaard, and Countess Tatiana Razumovsky von Wigstein.

Titles and styles

By Royal Decree of 11 May 2001, nr. 227, it was determined that all children and male-line descendants of Prince Constantijn of the Netherlands would bear the title of Count (Countess) of Orange-Nassau and the honorific Jonkheer (Jonkvrouwe) van Amsberg, and have the surname Van Oranje-Nassau van Amsberg.[5] As he is her only male grandchild, Claus-Casimir is currently the only one of Queen Beatrix's grandchildren who will be able to pass this title on to his children.

Upon the abdication of Queen Beatrix on 30 April 2013, the children of Prince Constantijn and Princess Laurentien ceased to be members of the Royal House, although they continue to be members of the royal family.[6]

When asked about their choice of name, the new parents said their little boy had been named after his grandfather Claus von Amsberg, who died in 2002, and three Friesian stadtholders who were all called Casimir. "If he develops more as a Claus, then it will be Claus, if he develops more as a Casimir, it will be Casimir," explained his father. He is called 'Clausimir' by his family and the press.

He was named after his paternal grandfather (Claus von Amsberg), distant ancestor Henry Casimir II, Count of Nassau-Dietz, paternal great-grandfather (Bernhard of Lippe-Biesterfeld), maternal uncle and father's godfather (Max Kohnstamm).



  1. "Claus-Casimir gedoopt in Apeldoorn" (in Dutch). 10 October 2004. Retrieved 16 February 2010.
  2. Current line of succession – Official website of the Dutch Royal House
  3. "Laurentien bevalt van zoon" (in Dutch). Trouw. 22 March 2004. Retrieved 16 February 2010.
  4. Hulsman, W.G. (24 April 2008). "Koninklijk kerken" (in Dutch). Reformatorisch Dagblad. Retrieved 16 February 2010.
  5. Titles of the children of HRH Prince Constantijn – Communiqué of the Netherlands Central Office of Information (in Dutch)
  6. "Abdication information". Dutch Royal House.
Count Claus-Casimir of Orange-Nassau van Amsberg
Born: 21 March 2004
Lines of succession
Preceded by
Countess Eloise of Orange-Nassau
Line of succession to the Dutch throne
6th position
Succeeded by
Countess Leonore of Orange-Nassau
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