Carl Maria Friedrich Ernst von Weber (18 or 19 November 17865 June 1826) was a German composer, conductor, virtuoso pianist, guitarist, and critic who was one of the first significant composers of the Romantic era. Best known for his operas, he was a crucial figure in the development of German Romantische Oper (German Romantic opera). Throughout his youth, his father, , relentlessly moved the family between Hamburg, Salzburg, Freiberg, Augsburg and Vienna. Consequently he studied with many teachers – his father, Johann Peter Heuschkel, Michael Haydn, Giovanni Valesi, Johann Nepomuk Kalcher and Georg Joseph Vogler – under whose supervision he composed four operas, none of which survive complete. He had a modest output of non-operatic music, which includes two symphonies; a viola concerto; bassoon concerti; piano pieces such as Konzertstück in F minor and Invitation to the Dance; and many pieces that featured the clarinet, usually written for the virtuoso clarinetist Heinrich Baermann. His mature operas—Silvana (1810), Abu Hassan (1811), Der Freischütz (1821), Die drei Pintos ( 1820–21), Euryanthe (1823), Oberon (1826)—had a major impact on subsequent German composers including Marschner, Meyerbeer, and Wagner; his compositions for piano influenced those of Chopin and Liszt. His best known work, Der Freischütz, remains among the most significant German operas. Life and career Childhood Weber, born in Eutin, Bishopric of Lübeck, was the eldest of the three children of and his second wife, Genovefa Weber, a Viennese singer. He was baptized Catholic on 20 November 1786 with the name Carl Friedrich Ernst; the alternative second name Maria appeared only later. His brother and sister died in infancy. Both parents were Catholic and originally came from the far south of Germany. The "von" was an affectation of his father's, who was not an aristocrat and who claimed descent from a south German noble family which was already extinct at the time. In April 1779, Franz Anton had been appointed director of the prince-bishopric orchestra, Eutin, which, however, was dissolved in 1781 because of spending cuts. He then took the position of Eutin's municipal music director. Dissatisfied with this position, he resigned in 1787 and founded a theatre company in Hamburg. After a brief stay in Vienna, he joined the theatre company of Johann Friedrich Toscani and Peter Carl Santorini, who performed in Kassel, Marburg and Hofgeismar. He tried repeatedly to establish a lasting company of his own but had only intermittent success. Franz Anton's