Question: Who was one of the first significant composers of the Romantic school, William Walton or Carl Maria von Weber?

full_context: Document 1: Hochschule für Musik Carl Maria von Weber: The "Carl Maria von Weber" College of Music (Hochschule für Musik "Carl Maria von Weber" in German, and also/formerly known as Dresden Conservatory or Dresden Royal Conservatory) is a college of music in Dresden, Germany.
Document 2: Benjamin Britten: Edward Benjamin Britten, Baron Britten {'1': ", '2': ", '3': ", '4': "} (22 November 1913 – 4 December 1976) was an English composer, conductor and pianist. He was a central figure of 20th-century British classical music, with a range of works including opera, other vocal music, orchestral and chamber pieces. His best-known works include the opera "Peter Grimes" (1945), the "War Requiem" (1962) and the orchestral showpiece "The Young Person's Guide to the Orchestra" (1945).
Document 3: Symphony No. 1 (Weber): Carl Maria von Weber's Symphony No. 1 in C was written in 1806–1807. While not usually acknowledged as among Weber's greatest works (a fact readily admitted by Weber himself), it is a testament to the young composer's gift of melody.
Document 4: Viola Concerto (Walton): The Viola Concerto by William Walton was written in 1929 for the violist Lionel Tertis at the suggestion of Sir Thomas Beecham. The concerto carries the dedication "To Christabel" (Christabel McLaren, Lady Aberconway). But Tertis rejected the manuscript, and composer and violist Paul Hindemith gave the first performance. The work was greeted with enthusiasm. It brought Walton to the forefront of British classical music. In "The Manchester Guardian", Eric Blom wrote, "This young composer is a born genius" and said that it was tempting to call the concerto the best thing in recent music of any nationality. Tertis soon changed his mind and took the work up.
Document 5: Ralph Vaughan Williams: Ralph Vaughan Williams {'1': ", '2': ", '3': ", '4': "} ( 12 October 1872– 26 August 1958) was an English composer. His works include operas, ballets, chamber music, secular and religious vocal pieces and orchestral compositions including nine symphonies, written over nearly fifty years. Strongly influenced by Tudor music and English folk-song, his output marked a decisive break in British music from its German-dominated style of the 19th century.
Document 6: Michael Tippett: Sir Michael Kemp Tippett {'1': ", '2': ", '3': ", '4': "} (2 January 1905 – 8 January 1998) was an English composer who rose to prominence during and immediately after the Second World War. In his lifetime he was sometimes ranked with his contemporary Benjamin Britten as one of the leading British composers of the 20th century. Among his best-known works are the oratorio "A Child of Our Time", the orchestral "Fantasia Concertante on a Theme of Corelli", and the opera "The Midsummer Marriage".
Document 7: Albert Ketèlbey: Albert William Ketèlbey ( ; born Ketelbey; 9 August 1875 – 26 November 1959) was an English composer, conductor and pianist, best known for his short pieces of light orchestral music. He was born in Birmingham and moved to London in 1889 to study at Trinity College of Music. After a brilliant studentship he did not pursue the classical career predicted for him, becoming musical director of the Vaudeville Theatre before gaining fame as a composer of light music and as a conductor of his own works.
Document 8: Genovefa Weber: Genovefa Weber, née Brenner (2 January 1764 – 13 March 1798) was a German opera singer and actress. She was born in Oberdorf, Allgäu, Germany and died in Salzburg, Austria. She was the mother of composer Carl Maria von Weber.
Document 9: Grand Duo Concertant (Weber): The Grand Duo Concertant, Opus 48, J204, is a three-movement work for clarinet and piano composed by Carl Maria von Weber from 1815 to 1816. It is a virtuosic piece for both instruments. Weber most likely composed the work for himself (on piano) and his friend Heinrich Baermann, a leading clarinettist of the era, although it has also been suggested that the intended clarinettist was Johann Simon Hermstedt.
Document 10: The Bear (opera): The Bear is the second of the two operas by William Walton, described in publication as an "Extravaganza in One Act". The libretto was written by Paul Dehn and Walton, based on the play of the same title by Anton Chekhov (which is also sometimes translated into English as "The Boor").
Document 11: Fantasia on a Theme by Thomas Tallis: Fantasia on a Theme by Thomas Tallis, also known as the Tallis Fantasia, is a work for string orchestra by the British composer Ralph Vaughan Williams. It was composed in 1910 and performed for the first time on 10 September that year at Gloucester Cathedral for the Three Choirs Festival. Vaughan Williams himself conducted, and the composition proved to be a major success. He revised the work twice, in 1913 and 1919. Performances generally run between 14 and 16 minutes.
Document 12: William Walton: Sir William Turner Walton, OM (29 March 19028 March 1983) was an English composer. During a sixty-year career, he wrote music in several classical genres and styles, from film scores to opera. His best-known works include "Façade", the cantata "Belshazzar's Feast", the Viola Concerto and the First Symphony.
Document 13: Konzertstück in F minor (Weber): The Konzertstück in F minor for Piano and Orchestra, Op. 79, J. 282, was written by Carl Maria von Weber. He started work on it in 1815, and completed it on the morning of the premiere of his opera "Der Freischütz", 18 June 1821. He premiered it a week later, on 25 June, at his farewell Berlin concert.
Document 14: Weber Inlet: Weber Inlet ( ) is a broad ice-filled inlet, which indents the south part of the Beethoven Peninsula, lying southwest of Bennett Dome, forming the northwest arm of Bach Ice Shelf in the southwest portion of Alexander Island, Antarctica. The inlet was first mapped from air photos taken by the Ronne Antarctic Research Expedition in 1947–48, by Searle of the Falkland Islands Dependencies Survey in 1960, and named by the UK Antarctic Place-Names Committee after Carl Maria von Weber (1786–1826), a German composer.
Document 15: 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.
ground_truth: Carl Maria Friedrich Ernst von Weber