Carl Maria von Weber and Friederike Grün were both what nationality?
Friederike Grün: Friederike Grün (14 June 1836- January 1917) was a German operatic soprano who had an active career during the latter half of the 19th century. Carl Maria von Weber: Carl Maria Friedrich Ernst von Weber (18 or 19 November 1786 5 June 1826) was a German composer, conductor, pianist, guitarist and critic, and was one of the first significant composers of the Romantic school.
German