Hereditary Grand Duchess to Celebrate 40th Birthday on Sunday

Her Royal Highness the Hereditary Grand Duchess of Luxembourg, Princess Stéphanie, will be celebrating her 40th birthday on Sunday 18 February 2024.

Born on 18 February 1984 in Ronse, Belgium, Countess Stéphanie de Lannoy is the youngest of the eight children of the late Count Philippe de Lannoy, who passed away on 10 January 2019, and Countess Alix de Lannoy (born Alix della Faille de Leverghem), who died on 26 August 2012. Countess (now Princess) Stéphanie grew up at the Anvaing family estate in the Belgian Hainaut province, alongside her seven brothers and sisters.

On 20 October 2012, she married His Royal Highness the Hereditary Grand Duke of Luxembourg, Prince Guillaume, at Notre-Dame Cathedral in Luxembourg City. Since then, she bears the title of Her Royal Highness the Hereditary Grand Duchess of Luxembourg.

Princess Stéphanie and Prince Guillaume have two sons, Prince Charles Jean Philippe Joseph Marie Guillaume, born on 10 May 2020 and Prince François Henri Luis Marie Guillaume, born on 27 March 2023. Both were born at the Maternité Grande-Duchesse Charlotte in Luxembourg.

Princess Stéphanie graduated with grande distinction in Germanic Philology from the Université Catholique of Louvain in Belgium. She finished her thesis about the influence of German romanticism on Russian romanticism based on the case studies of ETA Hoffmann and Pushkin during her stay at the Humboldt Universität in Berlin. She decided to stay in Berlin and subsequently completed an internship at the Agence Wallone à l’Exportation before working for an investment company.

Princess Stéphanie carries out most of her official activities together with Prince Guillaume. Since her marriage, she has been one of the four administrators of the Fondation du Grand-Duc et de la Grande-Duchesse.