Princess Marie Gabriele of Luxembourg, Dowager Countess of Holstein-Ledreborg (Marie Gabrielle Aldegunde Wilhelmine Louise; born 2 August 1925) is the third daughter and fourth of the six children of Grand Duchess Charlotte of Luxembourg and her husband Prince Félix. She is the younger sister of former Grand Duke Jean of Luxembourg and thus a paternal aunt to the current Grand Duke, Jean's son Grand Duke Henri. In 1951 she married Danish Count Karl Johan Ludvig, 7th Count of Holstein-Ledreborg (2 October 1919 – 25 June 2001), Roman Catholic; the couple were married for 50 years until his death in 2001. Together, they had seven daughters. Marie Gabriele was born on 2 August 1925, Berg Castle, Colmar-Berg, Luxembourg as the third daughter and fourth child of Grand Duchess Charlotte and Prince Félix, she was followed by two siblings born in 1927 and in 1929; altogether there were six siblings: Prince Jean, Hereditary Grand Duke, Princess Elisabeth, Princess Marie Adélaïde, Princess Marie Gabriele, Prince Charles and Princess Alix. Facing the German invasion in 10 May 1940 during World War II, the Grand Ducal Family of Luxembourg left the country to find refuge in Portugal, after receiving transit visas from the Portuguese consul Aristides de Sousa Mendes, in June 1940. They arrived at Vilar Formoso on 23 June 1940. After travelling through Coimbra and Lisbon, the family first stayed in Cascais, in Casa de Santa Maria, owned by Manuel Espírito Santo, who was then the honorary consul for Luxembourg in Portugal. By July they had moved to Monte Estoril, staying at the Chalet Posser de Andrade. On 10 July 1940, Princess Marie Gabriele, together with her father Prince Félix, her siblings, Heir Prince Jean, Princess Elisabeth, Princess Marie Adelaide, Prince Charles and Princess Alix, the nanny Justine Reinard and the chauffer Eugène Niclou, along with his wife Joséphine, boarded the S.S. Trenton headed for New York City.