| Franz Brentano | 
|---|
| Franz Brentano in 1890 | 
| Born | Franz Clemens Honoratus Hermann Josef Brentano 16 January 1838
 
 | 
|---|
| Died | 17 March 1917 (1917-03-18) (aged 79) 
 | 
|---|
| Spouses | 
Ida Lieben(m. 1880–1894; her death)
Emilie Rueprecht(m. 1897–1917; his death)
 | 
|---|
|  | 
|
| Education | University of Munich University of Berlin
 University of Münster
 University of Tübingen
 (PhD, 1862)
 University of Würzburg
 (Dr. phil. hab., 1866)
 | 
|---|
| Theses |  | 
|---|
| Doctoral advisor | Franz Jakob Clemens | 
|---|
| Other advisors | Adolf Trendelenburg | 
|---|
|
| Era | 19th-century philosophy | 
|---|
| Region | Western philosophy | 
|---|
| School | School of Brentano Aristotelianism
 Intentionalism ("act psychology")
 Empirical psychology
 Austrian phenomenology
 Austrian realism
 | 
|---|
| Institutions | University of Würzburg (1866–1873)
 University of Vienna
 (1873–1895)
 | 
|---|
| Notable students | Edmund Husserl, Sigmund Freud, Tomáš Masaryk, Rudolf Steiner, Alexius Meinong, Carl Stumpf, Anton Marty, Kazimierz Twardowski, Christian von Ehrenfels | 
|---|
| Main interests | Ontology Psychology
 | 
|---|
| Notable ideas |  | 
|---|
|  | 
|  | 
|  | 
|
| Religion | Christianity | 
|---|
| Church | Catholic Church | 
|---|
| Ordained | 6 August 1864 | 
|---|
| Laicized | 1873 | 
|---|
|  | 
|  | 
Franz Clemens Honoratus Hermann Josef Brentano (; German: [bʁɛnˈtaːno]; 16 January 1838 – 17 March 1917) was a German philosopher and psychologist. His 1874 Psychology from an Empirical Standpoint, considered his magnum opus, is credited with having reintroduced the medieval scholastic concept of intentionality into contemporary philosophy.
Originally a Catholic priest, Brentano withdrew from the priesthood in 1873 due to the dogmatic definition of papal infallibility in Pastor aeternus. Working subsequently as a non-denominational professor, his teaching triggered research in a wide array of fields such as linguistics, logic, mathematics and experimental psychology through the young generation of philosophers who were gathered as the School of Brentano.