burgher Johannes Thesleffi, town councillor of Viipuri 2 Mar 1699 Viipuri, SE Finland - 23 Apr 1758 Viipuri, SE Finland Parents Petteri Thesleffi Anna Hermannintytär of Harrii Children conseiller Petteri Vilhelmi Thesleff, master of Juustila manor, town councillor of Viipuri Partners Katriina Lotta of Havemanni