Possessions of Norway

Yngling-ruled (Ragnar Lodbrok's sons and Fairhair dynasty), Norse-Gael kingdoms in the British Isles:
*Kingdom of York (centre of Northern England, in the United Kingdom)
*Kingdom of Dublin (the Republic of Ireland's capital)
*Kingdom of Man and the Hebrides (the Isle of Man is now a Crown dependency of the UK, while Sutherland and Súðreyjar, Caithness and Inverness-shire, Argyll and Galloway are all part of Scotland in the UK)
* Earldom of Orkney, including Shetland (now part of Scotland in the UK)

Borderlands ceded to Sweden:
*Jemtland (since Treaty of Brömsebro)
*Herjedalen (since Treaty of Brömsebro)
*Idre & Särna (since Treaty of Brömsebro)
*Båhuslen (since Treaty of Roskilde)

Dependencies ceded to Denmark (since Union with Sweden):
*Faroe Islands
*Iceland
*GreenlandThe actual time for the ceding of the islands is somewhat disputed. Denmark claims it took place with the Union of Denmark and Norway in 1536, as the possessions of the Norwegain crown were claimed by the Danish king. Nevertheless, they were still referred to as "dependencies of Norway" in later official documents. Also the Treaty of Kiel states: "...and provinces, constituting the kingdom of Norway, [..] , together with their dependencies (Greenland, the Faroe Isles, and Iceland, excepted); [..] , shall belong in full and sovereign property to the King of Sweden,...", clearly indicating that they were until then regarded as a part of Norway.

Short-lived colonies now part of eastern Canada:
*Helluland
*Markland
*Vinland

Contested overseas possessions in the Arctic region:
*Erik the Red's Land (now part of Greenland)
*Sverdrup Islands (now part of Canada)

Current dependencies in the southern polar region:
*Bouvet Island (Sub-Antarctic)
*Peter I Island (Antarctic)
*Queen Maud Land (Antarctic)"Note: Jan Mayen and Svalbard are integral overseas areas of Norway."

ee also

*Norse colonization of the Americas
*Danish overseas colonies for Dano-Norwegian colonies