MarieofSaxe-Altenburg (Alexandrina Mary Wilhelmina Catherine Charlotte Theresa Henrietta Louise Pauline Elizabeth Frederica Georgina; German: Alexandrine
Iosifovna of Russia (born Princess Alexandra ofSaxe-Altenburg, 8 July 1830 – 6 July 1911) was the fifth daughter of Joseph, Duke ofSaxe-Altenburg and Duchess
ofSaxe-Gotha-Altenburg (Louise Dorothea Pauline Charlotte Fredericka Auguste); (21 December 1800 – 30 August 1831) was the wife of Ernst I, Duke of Saxe-Coburg
Princess MarieofSaxe-Altenburg (Marie Friederike Leopoldine Georgine Auguste Alexandra Elisabeth Therese Josephine Helene Sophie; 2 August 1854 – 8 October
Elizabeth Mavrikievna of Russia (Russian: Елизавета Маврикиевна, née Princess Elisabeth Auguste Marie Agnes ofSaxe-Altenburg; 25 January [O.S. 13 January]