Dukes of Saxe-Altenburg

Saxe-Altenburg () was one of the Saxon duchies held by the Ernestine branch of the House of Wettin in present-day Thuringia. It was one of the smallest of the German states with an area of 1323 square kilometers and a population of 207,000 (1905) of whom about one fifth resided in the capital, Altenburg. The territory of the duchy consisted of two non-contiguous territories separated by land belonging to the Principality of Reuss-Gera. Its economy was based on agriculture, forestry, and small industry. The state had a constitutional monarchical form of government with a parliament composed of

Duke of Saxe-Gotha and Saxe-Altenburg (1601-1675)

German duke (1763-1834)

duke of Saxe-Altenburg

Duke of Saxe-Altenburg (1848-1853)

Duke of Saxe-Altenburg (1603-1669)

Monarch of Saxe-Altenburg (1603 - 1639)

German duke (1871–1955)

German duke (1826–1908)

Last Duke of Saxe-Altenburg

Third son of Duke Friedrich Wilhelm I of Saxe-Weimar

Colonel in the Saxon army; titular Duke of Saxe-Altenburg and Jülich-Cleves-Berg