Task: Question Generation
Input (English): Passage: Delius was born in Bradford in Yorkshire. He was baptised as "Fritz Theodor Albert Delius", and used the forename Fritz until he was about 40. He was the second of four sons (there were also ten daughters) born to Julius Delius (1822–1901) and his wife Elise Pauline, née Krönig (1838–1929). Delius's parents were born in Bielefeld, Westphalia, of Dutch origin; the family had for some generations been settled in German lands near the Rhine. Julius's father, Ernst Friedrich Delius, had served under Blücher in the Napoleonic Wars. Julius moved to England to further his career as a wool merchant, and became a naturalised British subject in 1850. He married Elise in 1856.The Delius household was musical; famous musicians such as Joseph Joachim and Carlo Alfredo Piatti were guests, and played for the family. Despite his German parentage, the young Fritz was drawn to the music of Chopin and Grieg rather than the Austro-German music of Mozart and Beethoven, a preference that endured all his life. The young Delius was first taught the violin by a Mr. Rudolph Bauerkeller of the Hallé Orchestra, and had more advanced studies under Mr. George Haddock of Leeds. Although he achieved enough skill as a violinist to set up as a violin teacher in later years, his chief musical joy was to improvise at the piano, and it was a piano piece, a waltz by Chopin, that gave him his first ecstatic encounter with music. From 1874 to 1878, Delius was educated at Bradford Grammar School, where the singer John Coates was his slightly older contemporary. He then attended the International College at Isleworth (just west of London) between 1878 and 1880. As a pupil he was neither especially quick nor diligent, but the college was conveniently close to the city for Delius to be able to attend concerts and opera.Julius Delius assumed that his son would play a part in the family wool business, and for the next three years he tried hard to persuade him to do so. Delius's first job was as the firm's representative in Stroud in Gloucestershire, where he did moderately well. After being sent in a similar capacity to Chemnitz, he neglected his duties in favour of trips to the major musical centres of Germany, and musical studies with Hans Sitt. His father sent him to Sweden, where he again put his artistic interests ahead of commerce, coming under the influence of the Norwegian dramatists Henrik Ibsen and Gunnar Heiberg. Ibsen's denunciations of social conventions further alienated Delius from his commercial background. Delius was then sent to represent the firm in France, but he frequently absented himself from business for excursions to the French Riviera. After this, Julius Delius recognised that there was no prospect that his son would succeed in the family business, but he remained opposed to music as a profession, and instead sent him to America to manage an orange plantation.
Output (English): What is the full name of the person that had more advanced studies under Mr. George Haddock of Leeds?