The Swedish fretted dulcimer - Hummel - has old, most probably continental,  origins. It was rooted in Sweden though, although it is most uncommon today. The original for my instrument is from the province of Småland and was made by Björn Björn

Clockwise from left:

-Otto Malmborg, early 20th century

-Angel in Rynkeby church Denmark

-Henrik “Hummel” Schön tuning his hummel