Princess Ernestine Auguste Sophie of Saxe-Weimar-Eisenach was a princess of Saxe-Weimar-Eisenach and by marriage Duchess of Saxe-Hildburghausen. Wikipedia
Born: January 4, 1740, Weimar, Germany
Died: June 10, 1786 (age 46 years), Hildburghausen, Germany
Great-grandparents: John Ernest II, Sophie Christiane of Wolfstein, Louise Charlotte of Schleswig-Holstein-Sonderburg-Augustenburg, and more
Spouse: Ernest Frederick III (m. 1758–1780)