Carl Czerny
He was the composer of one of the second-published set of Diabelli Variations, alongside Franz Schubert, Carl Czerny, a young Franz Liszt, and many other Austrian composers. While in Vienna, Niccolò Paganini commissioned Joseph Panny, fellow violinist and composer, to write the "Tempest" on 25 May 1828 (it was finished on 14 June), while supervising himself the composition.