1921 – Born on January 5th. His godfather was His Holiness Pope Benedict XV. His titles are His Royal Highness Grand Duke Jean of Luxembourg, Duke of Nassau, Prince of Bourbon Parma.
1953 – He was married on April 9th to Princess Jósephine-Charlotte of Belgium (sister of King Baudouin of Belgium).
– They resided at the Château de Colmar-Berg in the Grand Duchy of Luxembourg.
– They have 5 children: Princess Marie-Astrid, Crown Prince Henri, Prince Jean and Princess Margaretha and Prince Guillaume.
1964 – The Grand Duke succeeded his mother, The Grand Duchess Charlotte, who, after a reign of 45 years, abdicated in his favor on the 12th of November.
2000 – Grand Duke Jean, abdicated in favor of his son Crown Prince Henri. His decision to step down at the age of seventy-nine followed a precedent set by his mother.