Claude Humbert Piarron de Chamousset

Claude Humbert Piarron de Chamousset (1717 – April 1773) was a French master at the Court of Auditors, physician and philanthropist.
Born in Paris, he was the originator of mutual benefit societies. According to A. Piron (1838), in 1758 he established a new postal system at Paris charging two sols for a single letter under one ounce, replacing the earlier postal system established in 1653 by Jean-Jacques Renouard de Villayer.
He is buried at Saint-Nicolas-du-Chardonnet (5th arrondissement of Paris) 28 April 1773
A monument in his honor was realized by Francis de Saint-Vidal (1840–1900), built at the intersection between rue Bonaparte and rue de l'Abbaye in Saint-Germain-des-Prés and inaugurated 3 September 1900 by President Émile Loubet.