Prince Guillaume of Luxembourg

Prince Guillaume
Born	(1963-05-01) 1 May 1963 (age 53) Betzdorf Castle
Spouse	Sibilla Sandra Weiller
Issue	Prince Paul Louis of Nassau Prince Léopold of Nassau Princess Charlotte of Nassau Prince Jean of Nassau
Full name Guillaume Marie Louis Christian
Father	Jean, Grand Duke of Luxembourg
Mother	Joséphine Charlotte of Belgium
Religion	Catholicism

Grand Ducal Family of Luxembourg
HRH The Grand Duke HRH The Grand Duchess HRH The Hereditary Grand Duke HRH The Hereditary Grand Duchess HRH Prince Félix HRH Princess Claire HRH Princess Amalia* HRH Prince Liam* HRH Prince Louis HRH Prince Gabriel* HRH Prince Noah* HRH Princess Alexandra HRH Prince Sébastien HRH Grand Duke Jean HI&RH Archduchess Marie-Astrid of Austria HRH Prince Jean Countess Diane HRH Princess Marie-Gabrielle* HRH Prince Constantin* HRH Prince Wenceslas* HRH Prince Carl-Johan* HRH Princess Margaretha of Liechtenstein HRH Prince Guillaume HRH Princess Sibilla HRH Prince Paul Louis* HRH Prince Léopold* HRH Princess Charlotte* HRH Prince Jean* HRH The Dowager Countess of Holstein-Ledreborg HRH Princess Joan HRH Princess Charlotte, Mrs. Cunningham HRH Prince Robert HRH Princess Julie HRH Princess Charlotte* HRH Prince Alexandre* HRH Prince Frederik* HRH The Dowager Princess of Ligne Extended grand-ducal family  Descendants of Duke William: Countess Elisabeth Clothilde von Merenberg * Only a Prince/ss of Nassau

Styles of Prince Guillaume of Luxembourg
Reference style	His Royal Highness
Spoken style	Your Royal Highness
Alternative style	Sir

HRH The Grand Duke
HRH The Grand Duchess

HRH Grand Duke Jean

HRH The Dowager Countess of Holstein-Ledreborg

HRH Princess Joan

Descendants of Duke William:

Prince Guillaume of Luxembourg (Guillaume Marie Louis Christian; born 1 May 1963) is the third son and youngest child of Grand Duke Jean and Grand Duchess Josephine-Charlotte of Luxembourg.

Prince Guillaume was born in Betzdorf Castle. He attended secondary school in Luxembourg and Switzerland, and received his baccalureate in Grenoble in 1982. He continued his studies at the University of Oxford in the United Kingdom, and later at Georgetown University in Washington, D.C., where he graduated in 1987. Guillaume was presented the degree Doctor of Humane Letters, honoris causa, at Sacred Heart University’s Academic Convocation and Induction of the Class of 2011 on 10 September 2007. The official ceremony welcomed the first-year students to SHU with a formal academic procession and messages from the faculty, student representatives, and president Anthony J. Cernera, PhD.

Guillaume worked for six months at the International Monetary Fund in Washington, and spent two years working for the Commission of the European Communities in Brussels. He is currently a director of ArcelorMittal.