Luxembourg Transition of Power - Main Page (2024/2025)

Prince Guillaume (Hereditary Grand Duke) with Grand Duke Henri

The Luxembourg Transition of Power came in two steps. In October 2024, Grand Duke Henri made his son, Prince Guillaume, Lieutenant-Representative. After a year, Grand Duke Henri will abdicate. 

Abdication (Oct 3rd, 2025)

Grand Duke Henri of Luxembourg announced during his Christmas Eve Address that he is abdicating in favor of his son/heir Prince Guillaume. 

• Announcement
• Schedule of Events 
• Official Website
• List of Foreign Royals & Dignitaries attending
• Messages of Congratulations

Title Changes: 

The following are the royal's formal titles.

Royal	Old	New
Henri	HRH The Grand Duke	HRH Grand Duke Henri
Maria Teresa	HRH The Grand Duchess	HRH Grand Duchess Maria Teresa
Guillaume	HRH The Hereditary Grand Duke*	HRH The Grand Duke
Stéphanie	HRH The Hereditary Grand Duchess*	HRH The Grand Duchess
Charles	HRH Prince Charles	HRH Prince Charles** (Later HRH The Hereditary Grand Duke)
Others	Titles will not change.

*The title given to the heir is "The Hereditary Grand Duke/Duchess." The Luxembourg Palace will use this exclusively in Luxembourgish, French, and German. However, in English, they often use "The Crown Prince/ss" instead, as it is more internationally recognizable. This title is not automatic. Prince Guillaume was sworn in as Hereditary Grand Duke a few months after his father's accession. 

Current title holders (& spouses of) don't normally include their first name as part of their formal title. However, you will often see people slip the first name in when there may be some ambiguity, or when being less formal. Gert's Royals, as a practice, tends to address everyone with their first name, as it improves recognition and seems more human. It also helps when there is an inevitable change in succession. Since old posts and tweets included the person's first name, there is no confusion with the current title holder if the reader didn't see the date/account for the succession.  

 Lieutenancy (Oct 2024-Oct 2025)

Grand Duke Henri of Luxembourg announced on National Day (June 23rd, 2024), that he is appointing his son/heir Prince Guillaume as Lieutenant-Representative in October 2024. This is the intermediate step in a regime change. 

Article 42 of Luxembourg Constitution

The Grand Duke may have Himself represented by a Prince of the blood, who shall bear the title of Lieutenant of the Grand Duke and who [shall] reside in the Grand Duchy.

This representative shall take an oath to observe the Constitution before exercising his powers.

Grand Duke Henri is NOT abdicating at this point (but probably will in a few years). By appointing Prince Guillaume as Lieutenant-Representative, Grand Duke Henri is able to pass certain powers and duties to his son. However, Grand Duke Henri will remain Monarch/Head of State. 

The announcement was made during Grand Duke Henri's Speech at the annual National Day Ceremony at the Luxembourg Philharmonie

"In this context, I want to, with the Grand Duchess, Prince Guillaume and Princess Stéphanie, to inform you that I have decided this October to transfer the lieutenancy to Prince Guillaume."

• Q&A 
• Schedule of Events