William Ernest, Grand Duke of Saxe-Weimar-Eisenach

Reign
January 5, 1901 - November 9, 1918 (17 years)
Preceded by Charles Alexander, Grand Duke of Saxe-Weimar-Eisenach Grand Duchy abolished on November 9, 1918 (98 years)

Birth
June 10, 1876
Weimar, Germany
House of Saxe-Weimar-Eisenach

Death
April 24, 1923
Henryków, Poland
46 years

Parents
Charles Augustus, Hereditary Grand Duke of Saxe-Weimar-Eisenach (1844-94) (50 years)
married 1873-94 (21 years, died)
Pauline, Princess of Saxe-Weimar-Eisenach (1852-1904) (52 years)

Siblings
1. Bernhard, Prince of Saxe-Weimar-Eisenach (1878-1900) (22 years)

Paternal Grandparents
Charles Alexander, Grand Duke of Saxe-Weimar-Eisenach (1818-1901) (83 years)
married 1842-97 (55 years, widowed)
Sophie, Princess of the Netherlands (1824-97) (73 years) (Children: 1 son, 3 daughters)

Maternal Grandparents
Hermann, Prince of Saxe-Weimar-Eisenach (1825-1901) (76 years)
married 1851-98 (47 years, widowed)
Augusta, Princess of Württemberg (1826-98) (72 years) (Children: 4 sons, 2 daughters)

Marriages
1. 1903-05 (2 years, widowed) Caroline, Princess Reuss of Greiz (1884-1905) (21 years)
2. 1910-23 (13 years, died) Feodora, Princess of Saxe-Meiningen (1890-1972) (82 years)

Children
1. Sophie, Princess of Saxe-Weimar-Eisenach (1911-88) (77 years)
married 1938-38 (8 months, divorced) Friedrich Günther, Prince of Schwarzburg (1901-71) (70 years)

2. Charles Augustus, Hereditary Grand Duke of Saxe-Weimar-Eisenach (1912-88) (76 years)
married 1944-88 (44 years, died) Elisabeth, Baroness of Wangenheim-Winterstein (1912-2010) (98 years)
Children: Elisabeth, Michael, Beatrice-Maria

3. Bernhard, Prince of Saxe-Weimar-Eisenach (1917-86) (69 years)
married 1943-56 (13 years, widowed) Felicitas, Princess of Salm-Horstmar (1920-56) (36 years)
Children: Alexander, Katharina, Wilhelm

4. Georg, Prince of Saxe-Weimar-Eisenach (1921-2011) (90 years)
married 1953-2011 (58 years, died) Gisela Jünisch (1930-) (87 years)
Children: Ariana, Cornelia, Isabella