Jean-Pierre Casimir de Marcassus
French politician and medallist
Died when: 83 years 71 days (998 months)Star Sign: Sagittarius

Jean-Pierre Marcassus de Puymaurin (5 December 1757 – 14 February 1841), also Jean-Pierre-Casimir de Marcassus, Baron de Puymaurin, was a French chemist, medallist, politician, and man of letters.
Casimir de Marcassus was born in Toulouse to a distinguished family.His grandfather and father both served as governing magistrates for the Capitole de Toulouse.
His father was also a patron of the arts and avid art collector.He married Marie-Antoinette Good, and lived and worked in Toulouse his entire life.
Casimir de Marcassus was a chemist who introduced into France glass etching by hydrofluoric acid.Following in his father's footsteps he became councilor of Toulouse and general counsel of the Haute-Garonne.
In 1805 he was elected to the Legislature, and was re-elected in 1811.When the Legislature was interrupted by the return of Napoleon in between wars, Casimir returned home until after the Hundred Days.
He then continued to be re-elected from 1815 through 1830.He was appointed on 1 May 1816 to become the Director of the Royal Mint of Medals.
Many of his works are collected at Academy of Toulouse.He died on 14 February 1841 in his hometown.