From the Wikipedia page 
Värmland County (Värmlands län) is a county or län in west central Sweden. It borders the Swedish counties of Dalarna, Örebro and Västra Götaland, as well as the Norwegian counties of Østfold, Akershus and Hedmark to the west. Prince Carl Philip is Duke of Värmland.
Värmland County was formed in 1779, when it was separated from Närke and Värmland County.