Swedish Iceland and/or Greenland?

this literally just popped into my head, but what does everyone think about Sweden coming to control Iceland and/or Greenland (in the case of Iceland perhaps just having alot of sway, because IOTL Iceland was more closely-associated with Norway). i think, ideally, i'd like the POD to be somewhere around the Napoleonic period
Have Denmark support Napoleon more strongly, and the Swedes might be able to justify annexing them along with Norway. They are a part of the Crown of Norway.