Johann Nepomuk Hummel is almost unknown today, but in his time was one of the most famous composers in Europe. Mozart's pupil, Beethoven's and Goethe's friend, Schubert's mentor, he was at the very heart of the music world, to the point where Beethoven asked him to perform at his memorial concert.
But he was the last of his school, as the musical taste of the public moved on to the grand romantic composers. He died famous in 1837 and has slipped into all but complete obscurity. That's a shame, as his music is from the heart of Classical music's greatest age, and fully reflects that.