To avoid further derailing the Swedish political thread...
I was thinking about the Napoleonic Kingdom of Naples and thinking about alternatives to Joachim Murat ruling it, possibly with more success in surviving Napoleon's fall.
So, what if Murat died in spring 1808? Maybe he gets a particularly virulent strain of malaria in Spain or a relative of someone killed in the tres de mayo events manages to get close enough to him to give him a fatal lead indigestion...
Napoleon now needs to choose someone else to rule Naples and I thought that Jean Baptiste Jules Bernadotte, Prince of Pontecorvo, might be a good pick: Napoleon didn't like him, but he often gave him important positions, maybe also out of some sort of lingering guilt about Desirée Clary...
What would happen in Sweden? Someone floated the idea of them choosing another French Marshal, like Macdonald, but what if instead Christian/Karl August survived for longer? Whom could he marry? How would the rest of the Napoleonic Wars be affected?