Marie Adélaïde was a notable figure in the early 20th century, known for her role as the Grand Duchess of Luxembourg. Born on February 14, 1894, she was the daughter of Prince Guillaume of Luxembourg and Princess Marie Anne of Portugal. Her reign began in 1912 and lasted until her abdication in 1919, during a time of significant political change in Europe. During her time as Grand Duchess, Marie Adélaïde was involved in various social and charitable initiatives, particularly during World War I. She worked to support her people and promote national unity. Her reign ended amid growing tensions, leading to her decision to step down in favor of her sister, Princess Charlotte.