What might the effects of a Massive American Failure in 1812 be in Europe?

I've asked a few questions on the war of 1812 for my new timeline and am quite confidant in the territorial acquisitions that would be made by Britain. What I am not sure of is what such an outcome would mean back in Europe. Assuming that The United Kingdom does much better in 1812 and takes Michigan, Wisconsin, Maine and the Oregon Territory (As well as gains access to the Mississippi for the Royal Navy), what changes should I expect to see in Europe, or will such a timeline leave Europe largely unaffected?
 
Well, the War of 1812 was merely a distraction to the British who only wanted to fight Napoleon so... not much changes for the next 30 years until butterflies start kicking
 
Well, the War of 1812 was merely a distraction to the British who only wanted to fight Napoleon so... not much changes for the next 30 years until butterflies start kicking

That is what I was thinking, but I still don't know where to start in Europe, in all my other timelines, Europe was a key factor, but in this, I just don't know
 
That is what I was thinking, but I still don't know where to start in Europe, in all my other timelines, Europe was a key factor, but in this, I just don't know

Just have 30 years go on like OTL and changes start kicking in when say, a guy who died in OTL ends up hitting it rich and using that money to influence the nobles (money marrying nobility was a common trope in this time)
 
It would be very unnoticed for decades until you intentionally introduce butterflies. The only major butterfly I could see would be with Spain. Britain might declare the Louisiana purchase null and void and make America re-purchase it from Spain. America might also wind up with Texas in an alternate Adams-Onis Treaty for some cash.

So maybe Spain winds up with some extra cash, perhaps the Carlist Wars go a little differently. Other than that, it would mostly be settlement patterns that change.
 
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