Franz Clemens Honoratus Hermann Brentano (German: [bʀɛnˈtaːno]; January 16, 1838 – March 17, 1917) was an influential German philosopher, psychologist, and priest whose work strongly influenced not only students Sigmund Freud, Kazimierz Twardowski, Alexius Meinong, Carl Stumpf, Anton Marty, Christian von Ehrenfels, and Tomáš Masaryk (as well as Masaryk's student, Edmund Husserl), but many others whose work would follow and make use of his original ideas and concepts.