Johannes Peter Müller
Of Jewish descent, he studied medicine in Berlin, where he received his medical doctorate in 1857. Among his instructors in Berlin were Johannes Peter Müller (1801-1858), Johann Lukas Schönlein (1793-1864) and Ludwig Traube (1818-1876). In 1875, he became chief physician in the internal medicine department at the Augusta-Hospital, and in 1881 became head physician at the Berlin Charité.