John George I, Duke of Saxe-Eisenach German duke (1634-1686) (1634–1686) Parents Eleonore Dorothea of Anhalt-Dessau William, Duke of Saxe-Weimar Children John William III of Saxe-Eisenach John George II, Duke of Saxe-Eisenach Friederike Elisabeth of Saxe-Eisenach Maximilian Heinrich von Sachsen-Eisenach Ernst Gustav von Sachsen-Eisenach Friedrich August von Sachsen-Eisenach Princess Eleonore Erdmuthe of Saxe-Eisenach Luise von Sachsen-Eisenach Siblings Duke Frederick of Saxe-Weimar Adolf William, Duke of Saxe-Eisenach Dorothea Maria of Saxe-Weimar Bernard II, Duke of Saxe-Jena John Ernest II, Duke of Saxe-Weimar Wilhelmine Eleanore von Sachsen-Weimar Johann Wilhelm von Sachsen-Weimar Wilhelm von Sachsen-Weimar Partners Johannetta of Sayn-Wittgenstein
