Otto Johan Tandefelt
Otto Johan Tandefelt born 13 April 1782 in Sysmä, Voipala, Finland was a Swedish Finn. He most likely died in America.
He was a key figure in the lynching of Axel von Fersen on June 20, 1810 in Stockholm. He was the alleged murderer.
After serving some years at Älvsborg fortress, he was pardoned by King Charles XIII, and eventually emigrated to America under the name of Pettersson.
He was a nephew of.
