From the Wikipedia page [https://en.wikipedia.org/wiki/H%C3%A4rjedalen
Härjedalen (Swedish pronunciation: [²hærjɛˌdɑːlɛn]; Norwegian: Herjådalen, Herjedalen) is a historical province or landskap in the centre of Sweden. It borders the country of Norway as well as the provinces of Dalarna, Hälsingland, Medelpad, and Jämtland. The province originally belonged to Norway, but was ceded to Sweden in the Treaty of Brömsebro, 164