The
Duchy of Saxe-Jena was one of the
Saxon Duchies held by the Ernestine line of the
Wettin Dynasty. Established in
1672 for
Bernhard, fourth son of
Wilhelm, Duke of Saxe-Weimar, Saxe-Jena was reincorporated into
Saxe-Weimar on the extinction of Bernhard's line in
1690.
Dukes of Saxe-Jena
Reincorporated into Saxe-Weimar