Princess Margaret of Prussia (d. 1954)

Princess Margaret Beatrice Feodora of Prussia (German: Margarethe; 22 April 1872 – 22 January 1954) was the youngest child of Frederick III, German Emperor, and Victoria, Princess Royal. As such, she was the younger sister of Emperor Wilhelm II and a granddaughter of Queen Victoria. She married Prince Frederick Charles of Hesse, the elected King of Finland, making her the would-be Queen of Finland had he not decided to renounce the throne on 14 December 1918. In 1926 they assumed the titles of Landgrave and Landgravine of Hesse. She lost three sons in World Wars I and II.