Norway

Norway is a country in northern Europe. It is currently a vassal under Sweden, but was previous the junior partner in the Kalmar Union under Denmark

History
Norway was part of the Kalmar Union under Denmark since 1397, and remained so even after Sweden gained independence. It would only be wrested out of Danish hands in the Dano-Swedish War, which made Norway a vassal under Sweden following the Treaty of Elfsborg on 19 February 1509. Olav V Galle was appointed the new king of Norway following the war.