What sovereign duke of the Duchy of Saxe-Coburg and Gotha, composed the opera Diana von Solange in 1858?
Ernest II, Duke of Saxe-Coburg and Gotha Ernest II (German: "Ernst August Karl Johann Leopold Alexander Eduard"; 21 June 1818 – 22 August 1893) was the sovereign duke of the Duchy of Saxe-Coburg and Gotha, reigning from 1844 to his death. Ernest was born in Coburg as the eldest child of Ernest I, Duke of Saxe-Coburg-Saalfeld, and his duchess, Princess Louise of Saxe-Gotha-Altenburg. Fourteen months later, his younger brother Prince Albert was born, who became consort of Queen Victoria of the United Kingdom. Ernest's father became Duke of Saxe-Coburg and Gotha in 1826 through an exchange of territories.
Duchess Anna Amalia of Brunswick-Wolfenbüttel Anna Amalia of Brunswick-Wolfenbüttel (24 October 173910 April 1807), was a German princess and composer. She became the duchess of Saxe-Weimar-Eisenach, by marriage, and was also regent of the states of Saxe-Weimar and Saxe-Eisenach from 1758 to 1775. She transformed her court and its surrounding into the most influential cultural center of Germany.