The Birkarls (Swedish: birkarlar; Finnish: pirkkalaiset) were a small, unofficially organized group that controlled taxation and commerce in central Lappmarken in Sweden from the 13th to the 17th century.[1]
^Vahtola, Jouko. Tornionlaakson historia I. Birkarlit, 'pirkkalaiset'. Malungs boktryckeri AB. Malung, Sweden. 1991. The article draws heavily from the material available in the book.