section_path: Abstract
section_name: Abstract
paragraph_text: Prince Guillaume, Hereditary Grand Duke of Luxembourg (Guillaume Jean Joseph Marie; born 11 November 1981), is the heir apparent to the Luxembourg throne since October 2000 and regent of the country since October 2024, as the son of Grand Duke Henri and Grand Duchess Maria Teresa. He is set to become Grand Duke on 3 October 2025 upon the abdication of his father.