Jean-Baptiste Denys

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Jean-Baptiste Denys
Jean-Baptiste Denis
Born	c. 1635
Died	October 3, 1704 Paris, France
Alma mater	University of Montpellier, Collège des Grassins [fr]
Scientific career
Fields	Medicine, Philosophy
Patrons	Henri Louis Habert de Montmor

Jean-Baptiste Denys (c. 1635 – 3 October 1704) was a French physician^[1] notable for having performed the first fully documented human blood transfusion, a xenotransfusion. He studied in Montpellier and was the personal physician to King Louis XIV.