Paul Hensel
Paul Hugo Wilhelm Hensel was a German philosopher.
Biography
Hensel was born in Groß-Barten in the Province of Prussia. He was the son of the landowner and entrepreneur Sebastian Hensel, brother of the mathematician Kurt Hensel, and grandson of the composer Fanny Mendelssohn and the painter Wilhelm Hensel. Fanny was the sister of Felix Mendelssohn Bartholdy, daughter of Abraham Mendelssohn Bartholdy, and granddaughter of philosopher Moses Mendelssohn and entrepreneur Daniel Itzig. Both of Hensel's paternal grandmothers and his mother were from Jewish families that had converted to Christianity.Hensel became a professor of philosophy at Heidelberg and Erlangen, where he taught until 1928. At Erlangen, Hensel was the supervisor of Hans Reichenbach's PhD dissertation on the theory of probability. Paul Hensel's first marriage was to Käthe Rosenhayn in 1896. The marriage produced their son Bruno Hensel. In 1917, Paul Hensel remarried to Elisabeth Nelson, née Schemmann, who also had a son in her first marriage and so brought him into her new marriage. She had two daughters with Paul Hensel: the pianist and music teacher Fanny Kistner-Hensel and the historian Cécile Lowenthal-Hensel.