Guillaume V, Grand Duke of Luxembourg
| Guillaume V | |||||
|---|---|---|---|---|---|
Guillaume in 2026 | |||||
| Grand Duke of Luxembourg | |||||
| Reign | 3 October 2025 – present | ||||
| Enthronement | 3 October 2025 | ||||
| Predecessor | Henri | ||||
| Heir apparent | Charles | ||||
| Regent of Luxembourg | |||||
| Regency | 8 October 2024 – 3 October 2025 | ||||
| Monarch | Henri | ||||
| Born | 11 November 1981 Grand Duchess Charlotte Maternity Hospital, Luxembourg City, Luxembourg | ||||
| Spouse | |||||
| Issue | Prince Charles Prince François | ||||
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| House | Luxembourg-Nassau (official) Bourbon-Parma (agnatic) | ||||
| Father | Henri, Grand Duke of Luxembourg | ||||
| Mother | María Teresa Mestre y Batista | ||||
| Alma mater | University College, Durham Brunel University of London University of Angers | ||||
| Military career | |||||
| Allegiance | Luxembourg | ||||
| Branch | |||||
| Service years | 2002–2025 | ||||
| Rank | Colonel | ||||
Grand Duke Henri
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| *Is a prince/ss of Nassau but not a prince/ss of Luxembourg |
Extended royal family Descendants of Prince Felix and also members of the Grand Ducal Family of Luxembourg (see there):
Descendants of Prince René:
Princess Marina
Descendants of Prince Louis:
Prince Rémy
Princess Chantal Prince Jean
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Guillaume V (Guillaume Jean Joseph Marie de Nassau; born 11 November 1981) is Grand Duke of Luxembourg, reigning since 3 October 2025. The eldest son of Grand Duke Henri and Grand Duchess Maria Teresa, he acceded to the throne upon the abdication of his father.