Karl August von Sachsen-Weimar-Eisenach, Herzog von Sachsen-Weimar-Eisenach, Großherzog von Sachsen-Weimar-Eisenach, was born 3 September 1757 in Weimar, Thuringia, Germany to Ernst August II. Konstantin von Sachsen-Weimar-Eisenach (1737-1758) and Anna Amalia von Braunschweig-Wolfenbüttel (1739-1807) and died 14 June 1828 Graditz, Saxony, Germany of unspecified causes. He married Luise von Hessen-Darmstadt (1757-1830) 3 October 1775 in Karlsruhe, Baden-Württemberg, Germany.
Children
| Name | Birth | Death | Joined with |
| Luise Auguste Amalie von Sachsen-Weimar-Eisenach (1779-1784) | |||
| Karl Friedrich von Sachsen-Weimar-Eisenach (1783-1853) | 2 February 1783 Weimar, Thuringia, Germany | 8 July 1853 Schloss Belvedere, Weimar, Thuringia, Germany | Maria Pavlovna Romanova (1786-1859) |
| Karoline Luise von Sachsen-Weimar-Eisenach (1786-1816) | 18 July 1786 Weimar, Thuringia, Germany | 20 January 1816 Ludwigslust | Friedrich Ludwig von Mecklenburg-Schwerin (1778-1819) |
| Karl Bernhard von Sachsen-Weimar-Eisenach (1792-1862) | 30 May 1792 Weimar, Germany | 31 July 1862 Liebenstein, Thuringia, Germany | Ida von Sachsen-Meiningen (1794-1852) |
Footnotes (including sources)
| ‡ General |
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