German psychiatrist (1794-1874)Johann Michael Leupoldt (November 11, 1794 – August 21, 1874) was a German psychiatrist born in Weißenstadt, Bavaria.
In 1818 he obtained his medical doctorate at the University of Erlangen, and following graduation taught classes at Erlangen in anatomy and physiology and also gave lectures on mental illness. In 1820 he received a grant from the Bavarian government to continue his education in psychiatry in Berlin. While working in the mental ward at the Charité, he made the acquaintanceship of Anton Ludwig Ernst Horn (1774-1848) and Johann Gottfried Langermann (1768–1832). In 1821 he became an associate professor at Erlangen, followed by a full professorship in 1826. 
He was a primary force in creation of the first mental hospital in Bavaria (at Erlangen in 1845); its first director was Karl August von Solbrig. For 17 years Leupoldt was chairman of the "Erlanger Societas physica-medica".
Written works.
Leupoldt was the author of numerous medical works. He published scientific articles in Christian Friedrich Nasse's ""Zeitschrift für psychische Ärzte" and in Johann Baptist Friedreich's "Magazin für Seelenkunde"". The following are some of his better written efforts: