About Jean of Luxembourg
Born 1957. Jean of Luxembourg is a Luxembourgish aristocrat.
Prince Jean of Luxembourg (Jean Félix Marie Guillaume; born 15 May 1957) is the second son of Jean, Grand Duke of Luxembourg and Princess Joséphine-Charlotte of Belgium. He is the twin brother of Princess Margaretha. He frequently goes by the name of Jean Nassau.
Early life and education
Prince Jean's godparents were Prince Felix of Luxembourg and Princess Margrethe of Denmark.
Prince Jean was educated in Luxembourg, Switzerland and France, where he obtained his baccalaureate. He then undertook a language course at the Bell School of Languages in Cambridge, England.
In 1977, Prince Jean began his military officer training at the Royal Military Academy Sandhurst in England. He subsequently became a member of the Champion Platoon, having been commissioned in August 1978. He was made a captain of the Luxembourg Army in 1979. After completing his university education in Geneva, he went to New York and joined W.R. Grace as a financial analyst working in the Finance, Planning & Analysis Division of the group that reported to the President & CEO of the company – at that time, Mr J. Peter Grace. Back in Europe in 1985, he obtained an MBA in 1986 from INSEAD in Fontainebleau, France.
Career Prince Jean works in the water industry as an advisor to the GDF SUEZ Group, Executive VP of the Suez Fondation and a member of the executive board of Degrémont, a subsidiary of Suez Environnement. Prince Jean has been President of the Chambre de Commerce belgo-luxembourgeoise en France. In 2006, he bought the Southern African Water subsidiary of Suez Environnement, WSSA (Water & Sanitation South Africa), and created Mea Aqua, with the objective of developing water and energy services in the Middle East and in Africa. Mea Aqua and its subsidiaries employ today over 2,500 employees.
Marriages and children On 27 May 1987, Prince Jean married morganatically in Paris, France, Hélène Suzanna Vestur (b. 31 May 1958, Saint-Germain-en-Laye, France), now a high civil servant, Conseiller d'Etat and judge, daughter of François Philippe Vestur (1927-2005), merchant, and Cécile Ernestine Buisson (1928-2017). His wife and children bore the title "Countess of Nassau" from 21 September 1995. ) Knight Grand Cross of the Order of Adolphe of Nassau
Foreign honours Knight Grand Cross of the Order of Isabella the Catholic (8 July 1980)
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Important facts
Family & relationships
People in Jean of Luxembourg's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Jean of Luxembourg's
Frequently asked questions
Who is Jean of Luxembourg?
Luxembourgian prince
When was Jean of Luxembourg born?
Jean of Luxembourg was born on 15 May 1957 in Betzdorf Castle.
What is Jean of Luxembourg's occupation?
Jean of Luxembourg is an aristocrat.
What nationality is Jean of Luxembourg?
Jean of Luxembourg is Luxembourgish.
Sources & further reading
· Wikipedia: Jean of Luxembourg
· DBpedia: Prince Jean of Luxembourg
Cite this page
APA: Biography.guide. (2026). Jean of Luxembourg. https://biography.guide/jean-of-luxembourg/
MLA: "Jean of Luxembourg." Biography.guide, https://biography.guide/jean-of-luxembourg/.
Chicago: "Jean of Luxembourg." Biography.guide. https://biography.guide/jean-of-luxembourg/.
Data last updated: 2026-09-28 · Spot an error? Report a correction.
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