What sovereign duke of the Duchy of Saxe-Coburg and Gotha, composed the opera Diana von Solange in 1858?
Diana von Solange Diana von Solange is an opera by the German prince Ernst II of Saxe-Coburg-Gotha, an amateur composer. It was premiered in 1858. In 1859, Franz Liszt wrote an orchestral "Festmarsch nach Motiven von E. H. z. S-C-G", S.116, based on themes from "Diana von Solange" (E. H. z. S-C-G was short for Ernst Herzog zu Sachsen-Coburg-Gotha).
Charles Theodore, Elector of Bavaria Charles Theodore (German: "Karl Theodor" ; 11 December 1724 – 16 February 1799) reigned as Prince-elector and Count Palatine from 1742, as Duke of Jülich and Berg from 1742 and also as prince-elector and Duke of Bavaria from 1777 to his death. He was a member of the House of Palatinate-Sulzbach, a branch of the House of Wittelsbach.