Birkarls
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. == Background == Birkarls (bircharlaboa) are first mentioned in 1328, when they are listed as one of the settler groups in northern Hälsingland, a designation that covered the western coast of Gulf of Bothnia all the way up and around the gulf to Oulu River.