Theodor Billroth

Christian Albert Theodor Billroth (26 April 18296 February 1894) was a German surgeon and amateur musician.

As a surgeon, he is generally regarded as the founding father of modern abdominal surgery. As a musician, he was a close friend and confidant of Johannes Brahms, a leading patron of the Viennese musical scene, and one of the first to attempt a scientific analysis of musicality. Provided by Wikipedia