François-Joseph Fétis

François-Joseph Fétis (French: [feti]; 25 March 1784 – 26 March 1871) was a Belgian musicologist, composer, critic and teacher. He was one of the most influential music critics of the 19th century, and his enormous compilation of biographical data in the Biographie universelle des musiciens remains an important source of information today. His wife, Adélaïde Robert, was the daughter of the French politician Pierre-François-Joseph Robert.