Ludwig Ritter von Köchel since undergone revisions. Mozart's works are often referred to by their K-numbers ("cf." opus number); for example, the "Jupiter" symphony, "Symphony No. 41" K. 551. Moreover, Köchel arranged Mozart's works into twenty-four categories, which were used by Breitkopf & Härtel when they published the first complete edition of Mozart's works from 1877 to 1910, a venture partly funded by Köchel. He also catalogued the works of Johann Fux. Ludwig Ritter von Köchel Ludwig Alois Friedrich Ritter von Köchel (; 14 January 1800 – 3 June 1877) was an Austrian musicologist, writer, composer, botanist and publisher. He is best known for
The Smith of Kochel known as "Balthasar" with a last name of either "Mayer" or "Riesenberger". A "Balthasar Mayer" (born January 6, 1644 in Waalkirchen) actually existed, but no evidence of this person being a smith in Kochel could be found. A "Balthasar Riesenberger" (born in Bach bei Holzolling) took part in the battle in Sendling, but no evidence of his being a smith in Kochel could be found either. The fact that Kochel belonged to the court district of Murnau at the time of the revolt, which did not take part in the Oberländer rebellion, also speaks against the Kochel theory. In memory