Union between Sweden and Norway

Sweden and Norway or Sweden–Norway (Swedish: Svensk-norska unionen; Norwegian: Den svensk-norske union(en)), officially the United Kingdoms of Sweden and Norway, and known as the United Kingdoms, was a personal union of the separate kingdoms of Sweden and Norway under a common monarch and common foreign policy that lasted from 1814 until its peaceful dissolution in 1905. The two states kept separate constitutions, laws, legislatures, administrations, state churches, armed forces, and currencies; the kings mostly resided in Stockholm, where foreign diplomatic representations were located.

Source: Wikipedia — Union between Sweden and Norway (CC BY-SA 4.0)