AHC: Spanish Colonies not entirely independent?

I'm writing a timeline which focuses on an alternative European Order. So, being an ignorant in Latin American matters, I don't quite know what to do there.
Can Spain, with a POD as early as 1815, keep power in some shape or form in America?
The options are:
A) Spain keeps all of them in a dominion-like status;
B) Spain manages to keep New Spain and Peru for some more time while giving independence to the other territories.
How is this manageable?
 
New Spain is gone with any realistic course of events: the creolos are far too numerous and powerful to pin down long term,and the political concessions that would need to be made would be politically toxic to Madrid to avoid having to do so. New Grenada is tricky too... though more manageable if you go with an Imperial Cortes option that gives the colonies representatives based on the freeborn white population. Honestly, that's probably your best bet overall: have Ferdinand listen to his liberal advisors rather than Royalist court and take the lession from the Bonapartist occupation that Absolutism isent going to fly. Let New Spain go and restrict the Franchise to only majority-white racial admixtures, and you'll still be able to keep a Penninsular hegemony over the Cortes that will be tolerable for the immediate future... though over time the viceroyalities probably vote for more and more autonomy
 
Are you sure it's so unmanageable to keep New Spain? I've looked over and Spain seemed to have had a hold over it until around 1821, and even then it was because Iturbide switched sides.
 
Are you sure it's so unmanageable to keep New Spain? I've looked over and Spain seemed to have had a hold over it until around 1821, and even then it was because Iturbide switched sides.

Yes, he did flip sides... because the new Spainish regeime was liberalizing to an extent that was intolerable to the creolos, while those who ideologically aligned with the change had already been stomped down and was dedicated to open defiance of the monarchy/independence since before '15. However, if you try to keep Ferdinand Absolutism in Spain not only do you dramatically weaken the country's economic potential and projecting power into the colonies (since the throne will need the arms to occupy itself) but alienate the elites in the OTHER colonies. And if you flip the ideological alignment of Mexico (Which basically requires a MUCH earlier POD) than decenteralizion becomes unacceptable to Spain proper as it's both ideologically opposed to the idea of Royal Absolutism and extremely harmful to the mother country as it drains much needed colonial revenues and, of there's any represention at all, there's more colonials than countrymen and so the "tail will end up wagging the dog".

Simply put, there's no compromise that makes everybody tolerably happy. Madrid has to either give up on the south, the North, or give up her dominance in the Imperial structure (which any regeime who tries likely gets lined up against the wall by the elites of the Penninsula)
 
I'm writing a timeline which focuses on an alternative European Order. So, being an ignorant in Latin American matters, I don't quite know what to do there.
Can Spain, with a POD as early as 1815, keep power in some shape or form in America?
The options are:
A) Spain keeps all of them in a dominion-like status;
B) Spain manages to keep New Spain and Peru for some more time while giving independence to the other territories.
How is this manageable?

1815? too late men

La Plata (Argentina+Uruguay) was independent and trying to expand their Frontiers into Paraguay and "liberate" Alto Peru(Bolivia) as early as 1812

Chile, the 09 of October of 1814, was Reconquered By spanish Forces, but the Independence forces where preparing a expedition against the Spanish Troops with support from La Plata, Plus the Spanish Government Brutal restore order, make them lost all support from the Chilean society, to the point they in as completely in war against the Spanish Forces by 12 February of 1817, with total Independence of Chile in 1818

Paraguay was de facto independent since 1800 and their independence war was against be Absorbed by La Plata

Colombia was independent an Warring a "liberation war" for Venezuela and Ecuador in 1815, Was Reconquered in 1816, but again the brutal repression by the Spanish government send most of the Colombian firmly to the Independence camp.

Peru was being attacked in 1820 By the Argentinean-Chilean(mostly Chilean) "liberation expedition" and was completly independent by 1821, after the Gran Colombia and Bolivar intervention.

Ecuador Was being liberated in 1820, by Gran Colombia Forces and with a total control of the coast region by the Independentist by the end of 1820.

Mexico was explained by @FillyofDelphi

Only Bolivia is still firmly Royalist, but is a island surrounded by Independent countries, in fact you could argue Bolivia Lost all the war were they fight, even their independence war as they Don´t want to be independent

Now if you Try you POD in 1800 with some form of dominion-Like Status o even Earlier with the Bourbon Reforms, this become Viable, but the Bourbon Reforms was one of the causes of increase resentment of the Criollo (america born Spanish), Against the peninsulares in general and the King in particular
 
You could go for a Spanish commonwealth like Britain has if you want it to be lite or you can go for a Spanish version of the imperial federation if you want it to stay a part of Spain.
 
Honestly I think you're vastly overestimating the situation on the ground. Spain did manage to successfully reconquer most of the Americas for a short time (see the South American Reconquista) before the expeditionary force at Cadíz revolted in favor of the 1812 Constitution and plunged Spain into the Trienio Liberal. It was that revolt that destroyed any chance of making the gains against the revolutionaries stick. So if Rafael del Riego (the man who led the revolt by the army) wasn't with the expeditionary force (really the guy didn't even bother to hide his liberal sympathies, so I have no idea why reactionary Fernando VII put him in charge of a major battalion), the army might not revolt. If that happened, then Spain might be able to reinforce their reconquests or at the least fortify the major Royalist regions enough to keep parts of the Empire.

Also, there is another potential solution. While doing research on a Bourbon Restoration TL, I came across something interesting; at the Congress of Aix-la-Chapelle in 1818, the Spanish attempted to raise the possibility of Concert intervention in the Americas to restore control of their Empire. Most of the Great powers supported it, but the idea floudered when Spain refused to agree to the conditions Britain set (Don't remember them exactly, but I think it was something like Free trade with the Spanish Empire and British mediation between Spain and the rebels, or something similar), and without British support the other powers were unwilling to send troops (I guess they were either afraid that the Royal navy would force them back or wanted a full consensus before making a decision). So have Spain agree to the conditions or have the rest of the Quintuple alliance call the British bluff.

No none of these solutions would be long term, just enough to last through Fernando VII's reign. Hopefully the moderates and liberals that come to power under the regency of Isabel II would be able to come up with a more permanent, stable solution, either like the British dominions or the idea of Colonial representation in the Cortes, like the 1812 Constitution envisioned.
 
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