Jean Mabillon
Dom Jean Mabillon, O.S.B., was a French Benedictine monk and scholar of the Congregation of Saint Maur. He is considered the founder of the disciplines of palaeography and diplomatics. Wikipedia
Born: November 23, 1632, Saint-Pierremont, France
Died: December 27, 1707 (age 75 years), Saint-Germain-des-Prés, Paris, France
Founder of: Palaeography and diplomatic