Elisabeth Sophie of Saxe-Altenburg was a German princess born on January 24, 1746. She was the daughter of Joseph Frederick, Duke of Saxe-Altenburg and Countess Maria Antonia of Erbach-Schönberg. Elisabeth Sophie became known for her marriage to Duke Ernest I of Saxe-Gotha-Altenburg, which helped strengthen political alliances in the region. Throughout her life, Elisabeth Sophie was involved in various cultural and social activities at the court. She passed away on March 18, 1815, leaving behind a legacy as a member of the Saxe-Altenburg dynasty and contributing to the history of German nobility.