Infanta Marie Anne of Portugal was Grand Duchess of Luxembourg as the wife of Grand Duke William IV. She was the regent of Luxembourg between 1908 and 1912; first during the illness of her spouse, and then in the name of their daughter, Grand Duchess Marie-Adélaïde.
- Position held
- Consort of Luxembourg
- Citizenship
- Kingdom of the Netherlands, Luxembourg, Portugal, Kingdom of Portugal
- Born
- July 13, 1861
- Died
- July 31, 1942
