Ludwig Ritter von Köchel was a writer, composer, botanist and publisher. He was born in 1800 in the small town of Stein, Lower Austria. He studied law in Vienna and for 15 years he was the tutor of the four sons of Archduke Charles.
Köchel's reward was a knighthood and a generous financial settlement which permitted him to spend the rest of his life as a private scholar. Scientists of his day were greatly impressed by his botanical researches in North Africa, the Iberian Peninsula, Britain, the North Cape and Russia.
In addition to botany, he was interested in geology and mineralogy, but he also loved music, and as a member of the Salzburg Mozarteum he published in 1862 a chronical and thematic register of the works of Mozart, the Köchel Catalogue, now in its 6th revised edition.
Ludwig Ritter von Köchel died on June 3, 1877 in Vienna, Austria