Pehr Wilhelm Wargentin, Swedish astronomer and demographer.
Wargentin was the son of the vicar of Sunne Wilhelm Wargentin and his spouse Christina Aroselia, and the great-grandson of Joachim Wargentin, a Lübeck-born burgher of Åbo in Finland. Wikipedia
Born: September 22, 1717, Sunne, Sweden
Died: December 13, 1783 (age 66 years), Stockholm, Sweden