King Haakon IV led a large army into the Värmland district of Sweden, to punish the inhabitants for their support of the pretender to the throne of Norway, Sigurd Ribbung.
^Tvedt, Knut Are; Scott, Ida. "monarker i Norge". In Bolstad, Erik (ed.). Store norske leksikon (in Norwegian). Oslo: Norsk nettleksikon. Retrieved 1 April 2023.