3 October 2025 marks a historic date for our country: after a reign defined by respect and dedication, His Royal Highness Grand Duke Henri passed the torch to his eldest son. On the eve of his 44th birthday, His Royal Highness Grand Duke Guillaume took the oath before the Chamber of Deputies, thus becoming Luxembourg’s new Head of State.
For more than two decades, Grand Duke Guillaume has prepared for this responsibility with seriousness and commitment. As Hereditary Grand Duke and later as the Grand Duke’s ‘Lieutenant-Représentant’, he carried out numerous economic missions around the world, enhancing Luxembourg’s visibility and forging valuable connections for our future.
His experience within the Council of State and his involvement in national institutions reflect his desire to deeply understand the challenges of our society. But beyond his official duties, Grand Duke Guillaume also embodies values of closeness and humanity.
Guided from a young age by a love of nature and a sense of community, he became involved in scouting, and in 2019 was appointed Chief Scout of Luxembourg. His international involvement in the movement, notably as head of the ‘World Scout Foundation’, reflects his commitment to youth and education.
In 2012, Grand Duke Guillaume married Countess Stéphanie de Lannoy, in a deeply emotional moment shared by the entire country. Together, they form a united and committed couple, parents to two young princes, Charles and François, who are growing up with curiosity and kindness. The new Grand Ducal couple is actively involved in Luxembourg’s cultural, social, and artisanal life. Their warm presence and attentive listening make them approachable figures, oriented toward the future while honouring traditions.