[1] Lars Larsen Forsæth was born at Forset, a family farm in the parish of Klæbu in Sør-Trøndelag, Norway.
Both brothers were enterprising farmers who over time bought additional properties.
Lars Forsæth served as one of the Settlement Commissioners (Forlikskommissær) on the Conciliation Board (Forliksråd) for his community for many years.
[2][3][4][5] Lars Larsen Forsæth represented Søndre Trondhjems amt (now Sør-Trøndelag) at the Norwegian Constituent Assembly in 1814, together with Jacob Hersleb Darre and Anders Rambech.
[6][7][8] Lars Forsæth was decorated with the Order of the Dannebrog and the Medal for Outstanding Civic Service (borgerdådsmedaljen).