Auguste Comte fondateur du Positivisme habita ici de 1818 a 1822. Il y concut la loi sociologique des trois etats et formula le systeme de classification des sciences

English translation: "Augustus Founding Earl of Positivism lived here from 1818 to 1822. It establishes the sociological law of the three states and formulates the system of classification of sciences [AWS Translate]"
Galichonj on Wikimedia Commons
This is an approximate position

Colour: stone

Wikimedia:

Flickr: