Cornelis van Vollenhoven
Cornelis van Vollenhoven( 8 May 1874, Dordrecht – 29 April 1933, Leiden) was a Dutch law professor and legal scholar, best known for his work on the legal systems of the East Indies.
Cornelis van Vollenhoven began his university studies at Leiden at the age of 17, where he would earn many degrees, including: a master's in law( 1895), a bachelor's degree in Semitic languages( 1896), a master's in political science( 1897), and finally his PhD in law and political science( 1898).
He received a" cum laude" for his thesis, “ Scope and content of international law ”(" Omtrek en inhoud van het internationale recht"), which foreshadows his later focus on the laws of Southeast Asia.
After finishing his studies, Van Vollenhoven became the private secretary of J.Th. Cremer, a colonial" captain of industry" and minister of Colonial Affairs.
In 1901 Van Vollenhoven became professor of the Adat Law of the Dutch East Indies at Leiden University.
As legal scholar he had enormous influence on his students and colleagues.
Several of his students would go on to become prominent scholars in the field of Adat law, including Frederik David Holleman, whose doctorate was supervised by Van Vollenhoven.
The University of Amsterdam granted him an honorary doctorate in 1932.
Most of his life, Van Vollenhoven focused on the traditional legal system of Indonesia, the" Adat".
He campaigned for its preservation and dispelled myths of its being quackery and inefficient.
He wrote numerous pamphlets on the subject, including" The Adat- law of the Netherlands- Indies ”(" Het adatrecht van Nederlandsch- Indië"), which documented the adat traditions of 19 different regions, plus the adat traditions of the" Foreign Orientalsvreemde oosterlingen", i.e. Arabs, Chinese, Indians, and the like).
Most remarkably, all of his work was done in Leiden, as Van Vollenhoven visited the East Indies only twice—once in 1907 and again in 1923.
During his life, he was adat's greatest champion, and is still revered by many of the older generations in Indonesia.
“ The Man for Adat Law ”, as he was called, died in Leiden in 1933.
The Van Vollenhoven Institute for Law, Governance and Society, part of the Leiden Law School, is named after Cornelis van Vollenhoven.
Prince Floris of Orange-Nassau, van Vollenhoven
Prince Floris Frederik Martijn of Orange- Nassau, van Vollenhoven( born 10 April 1975) is the fourth and youngest son of Princess Margriet of the Netherlands and Pieter van Vollenhoven.
Prince Floris has three older brothers: Prince Maurits, Prince Bernhard, Prince Pieter- Christiaan
Princess Marianne of the Netherlands
Princess Marianne of the Netherlands, Princess of Orange- Nassau(" Wilhelmina Frederika Louise Charlotte Marianne"; 9 May 1810 – 29 May 1883), was a member of the House of Orange- Nassau.
Prince Bernhard of Orange-Nassau, van Vollenhoven
Prince Bernhard Lucas Emmanuel of Orange- Nassau, van Vollenhoven( born 25 December 1969) is the second son of Princess Margriet of the Netherlands and Pieter van Vollenhoven.
Before the succession of his cousin Willem- Alexander as King, he was a member of the Dutch Royal House and eleventh in the line of succession to the Dutch throne.
With Willem- Alexander's succession however, he is no longer a member of the Dutch Royal House, and is no longer in line to direct succession to the Dutch throne, but still retains its membership as a member of the Dutch Royal Family
Princess Marilène of Orange-Nassau, van Vollenhoven
Princess Marilène of Orange-Nassau, van Vollenhoven-van den Broek (née Marie-Hélène Angela van den Broek; 4 February 1970) is the wife of Prince Maurits of Orange-Nassau, van Vollenhoven, and was thereby member of the Dutch Royal House until King Willem-Alexander's accession in 2013 rendered Prince Maurits too distantly related to the reigning monarch.
She remains a member of the larger Dutch Royal Family.
Princess Pauline of Orange-Nassau
Princess Pauline of Orange-Nassau ("Wilhelmina Frederika Louise Pauline Charlotte"; 1 March 1800 – 22 December 1806) was a Princess of the House of Orange-Nassau.
Prince Pieter-Christiaan of Orange-Nassau, van Vollenhoven
Prince Pieter-Christiaan Michiel of Orange-Nassau, van Vollenhoven (born 22 March 1972), is the third son of Princess Margriet of the Netherlands and Prof. Pieter van Vollenhoven.
Before the succession of his cousin Prince Willem-Alexander as King, he was a member of the Dutch Royal House and twelfth in line to the throne.
With Willem-Alexander's succession however, he is no longer a member of the Dutch Royal House, and is no longer in line to direct succession to the Dutch throne, but still retains his membership as a member of the Dutch Royal Family
Princess Anita of Orange-Nassau, van Vollenhoven-van Eijk
Princess Anita of Orange- Nassau( Anita Theodora, née van Eijk; born 27 October 1969) is the wife of Prince Pieter- Christiaan of Orange- Nassau, van Vollenhoven, and thereby member of the Dutch Royal Family by marriage.
Prince Maurits of Orange-Nassau, van Vollenhoven
Prince Maurits Willem Pieter Hendrik of Orange-Nassau, van Vollenhoven (born 17 April 1968) is a member of the Dutch royal family as the eldest son of Princess Margriet of the Netherlands and Pieter van Vollenhoven.
Before the succession of his cousin Willem-Alexander as King, he was a member of the Dutch Royal House and tenth in the line of succession to the Dutch throne.
With Willem-Alexander's succession however, he is no longer a member of the Dutch Royal House, and is no longer in line to direct succession to the Dutch throne.
Princess Annette of Orange-Nassau, van Vollenhoven-Sekrève
Princess Annette of Orange- Nassau, van Vollenhoven- Sekrève(" legal name:" Annette van Vollenhoven- Sekrève; born 18 April 1972) is the wife of Prince Bernhard of Orange- Nassau, van Vollenhoven, the second son of Princess Margriet of the Netherlands and Pieter van Vollenhoven.
Annette Sekrève was born in The Hague, the daughter of Ulrich Sekrève and his wife Jolanda de Haan( the de Haan belong to the Dutch patriciate).
She obtained her vwo diploma in 1991 and studied from 1991 till 1996 at Groningen University where she obtained an MSc degree in psychology.
It was at university that she met her future husband, Prince Bernhard.
The couple announced their engagement on 11 March 2000.
They married in July 2000.
The civil ceremony was performed on 6 July 2000 by the Mayor of Utrecht, Ms A. H. Brouwer- Korf, in the Spiegelzaal van het Paushuize, Utrecht.
The marriage was blessed two days later, on 8 July 2000, by Dr. Anne van der Meiden in the Cathedral of Saint Martin, Utrecht.
Annette then acquired the courtesy title" Her Highness, Princess of Orange- Nassau, van Vollenhoven" due to her status as the wife of a Prince of Orange- Nassau.
Since 2002, Princess Annette has worked as a counsellor at the AGO foundation in Amsterdam.
Princess Annette and Prince Bernhard have three children:
The family resides in Amsterdam and lead low- profile lives, with attendance only at major royal family events including King's Day.

Question: Who is Princess Marilène Of Orange-Nassau, Van Vollenhoven's mother-in-law?
Answer: Princess Margriet of the Netherlands