He was born in
Düsseldorf, the son of
philosopher Friedrich Heinrich Jacobi. He attended the universities of
Jena,
Göttingen,
Erfurt, and
Edinburgh, and for a period of time worked as a hospital aide in
London. Later he became director of a mental hospital at
Salzburg, and beginning in 1816 was a Prussian
Medizinalrat (medical officer). In 1825 he was the first director at the
Siegburg lunatic asylum, located north of
Bonn. One of his better known assistants at Siegburg was
Bernhard von Gudden. Jacobi was a prominent member of the
somatic school of psychiatry in Germany, believing that mental disorders were largely due to organic factors. His views on psychiatry were in direct contrast to those of
Leipzig professor
Johann Christian August Heinroth, a contemporary of Jacobi, who based psychiatry from a "spiritualistic" standpoint. Jacobi was influenced by the work of
Philippe Pinel and
William Tuke regarding a "non-restraint policy" for patients, and tried to introduce this reform in Germany. On the 50th anniversary of his doctorate in 1857, a festival was held in his honor, attended by distinguished men from England and France as well as from every part of Germany. At this festival, an association was organized called the Jacobi foundation, for the improvement of physicians, officers, nurses, and attendants in the care of the insane. Jacobi died on May 18, 1858, in
Siegburg. ==Writings==