Jean Picard was a French astronomer and priest born in La Flèche, where he studied at the Jesuit Collège Royal Henry-Le-Grand.
He is principally notable for his accurate measure of the size of the Earth, based on a careful survey of one degree of latitude along the Paris Meridian.
Wikipedia https://en.wikipedia.org/wiki/Jean_Picard
Address 2 Avenue Jules Vallès, Athis-Mons 91200, France
Coordinates 48°41'53.499" N 2°22'19.679" E
