The best-known composers from this period are Joseph Haydn, Wolfgang Amadeus Mozart, Ludwig van Beethoven, and Franz Schubert; other notable names include Carl Philipp Emanuel Bach, Johann Christian Bach, Luigi Boccherini, Domenico Cimarosa, Muzio Clementi, Christoph Willibald Gluck, André Grétry, Pierre-Alexandre Monsigny, Leopold Mozart, Giovanni Paisiello, François-André Danican Philidor, Niccolò Piccinni, Antonio Salieri, Mauro Giuliani, Christian Cannabich and the Chevalier de Saint-Georges. Beethoven is regarded either as a Romantic composer or a Classical period composer who was part of the transition to the Romantic era. Schubert is also a transitional figure, as were Johann Nepomuk Hummel, Luigi Cherubini, Gaspare Spontini, Gioachino Rossini, Carl Maria von Weber, Jan Ladislav Dussek and Niccolò Paganini. The period is sometimes referred to as the era of "Viennese Classicism" (), since Gluck, Haydn, Salieri, Mozart, Beethoven, and Schubert all worked in Vienna.