Heinrich Ludwig Egmont Dorn was a German conductor, composer, and journalist. He was born in Königsberg (now known as Kaliningrad), where he studied piano, singing, and composition. Later, he studied in Berlin with Ludwig Berger, Bernhard Klein, and Carl Friedrich Zelter. His first opera, Rolands Knappen, was produced in 1826, and was a success. Around this time, he became co-editor of the Berliner allgemeine Muzikzeitung. Dorn became well known as a conductor of opera, and held theatre posts at Königsberg (1828), Leipzig (1829–32), Hamburg (1832),Riga (1834–43), and Cologne (1844–8). In 1849, he became co-conductor, with Wilhelm Taubert, of the Berlin Hofoper - a post he held until 1869. Dorn taught counterpoint to the young Robert Schumann, and was a friend of Franz Liszt. He was a harsh critic of Richard Wagner, but was persuaded to conduct the opera Tannhäuser, in 1855. He also wrote an opera Die Nibelungen, based on the Nibelungenlied, in 1853, many years before Wagner completed Der Ring des Nibelungen. Dorn died in Berlin in 1892.