Felix Josef von Mottl was an Austrian conductor and composer. He was regarded as one of the most brilliant conductors of his day. He composed three operas, of which Agnes Bernauer was the most successful, as well as a string quartet and numerous songs and other music. His orchestration of Richard Wagner's "Wesendonck Lieder" is still the most commonly performed version. He was also a teacher, and his pupils included Ernest van Dyck and Wilhelm Petersen.