 Joseph, Duke of Saxe-Altenburg

Joseph Georg Friedrich Ernst Karl, Duke of Saxe-Altenburg (27 August 1789 in Hildburghausen – 25 November 1868 in Altenburg), was a duke of Saxe-Altenburg.He was the second but first surviving son of Frederick, Duke of Saxe-Hildburghausen (of Saxe-Altenburg from 1826) and Duchess Charlotte Georgine of Mecklenburg-Strelitz.