Prince Jean of Luxembourg was born on 15 May 1957 at Betzdorf Castle, the second son of Jean, Grand Duke of Luxembourg and Princess Joséphine-Charlotte of Belgium. He is the twin brother of Princess Margaretha. His godparents are Prince Felix of Luxembourg and Princess Margrethe of Denmark. He frequently goes by the name of Jean Nassau. On 26 September 1986, Prince Jean renounced his right of succession to the Luxembourg throne.