Marie-Adélaïde, Grand Duchess of Luxembourg (died 1924)

Marie-Adélaïde, was Grand Duchess of Luxembourg from 1912 until her abdication in 1919. She was the first Grand Duchess regnant of Luxembourg, its first female monarch since Duchess Maria Theresa and the first Luxembourgish monarch to be born within the territory since Count John the Blind (1296–1346).