Dukes of Saxe-Gotha-Altenburg

Saxe-Gotha-Altenburg () was a duchy ruled by the Ernestine branch of the House of Wettin in today's Thuringia, Germany. The extinction of the line in 1825 led to a major re-organisation of the Thuringian states.

duke of Saxe-Gotha-Altenburg (1676-1732)

Duke of Saxe-Gotha-Altenburg

Duke of Saxe-Gotha-Altenburg

Duke of Saxe-Gotha-Altenburg (1699-1772)

First Duke of Saxe-Gotha-Altenburg (1646-1691)

Duke of Saxe-Gotha-Altenburg