Frederick III, Duke of Saxe-Gotha-Altenburg, was a duke of Saxe-Gotha-Altenburg.
Johann Adolf of Saxe-Gotha-Altenburg, was a German prince of the House of Saxe-Gotha-Altenburg and a Saxon lieutenant general.
Prince Johann Adolf of Saxe-Gotha-Altenburg
Schloss Friedrichstanneck
Markt 25, Eisenberg
Signature of Johann Adolf of Saxe-Gotha-Altenburg („Johann Adolph zu Sachsen“)