Karlstad Treaty signed, which peacefully dissolved the union between the Norway and Sweden

Sweden and Norway or Sweden–Norway (Svensk-norska unionen; Den svensk-norske union), officially the United Kingdoms of Sweden and Norway, or as the United Kingdoms, was a personal union of the separate kingdoms of Sweden and Norway under a common monarch and common foreign policy from 1814 to 1905, before Sweden accepted Norway's leaving the union.

The 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.

The Norwegian government was presided over by viceroys: Swedes until 1829, Norwegians until 1856. That office was later vacant and then abolished in 1873. Foreign policy was conducted through the Swedish foreign ministry until the dissolution of the union in 1905.