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Regnier de Graaf

Dutch physician
Regnier de Graaf, original Dutch spelling Reinier de Graaf, or Latinized Reijnerus de Graeff, was a Dutch physician, physiologist and anatomist who made key discoveries in reproductive biology. Wikipedia
Born: July 30, 1641, Schoonhoven, Netherlands
Died: August 17, 1673 (age 32�years), Delft, Netherlands
Nationality: Dutch