AHC: Best PoD For A Balkanised Spain

What is the best and most plausible PoD for Castile and Aragon to remain separate to this day? The later the better. Go ahead!
 
If Charles, prince of Viana, survives to succeed his father, Isabella can still marry Ferdinand without uniting Castile and Aragon. This has the unfortunate side effect that it results in uniting Navarre and Aragon.
 
Juana, la Beltraneja succeded as the Queen of Castile, while Isabel married Ferdinand and became queen consort of Aragon.
 

Razgriz 2K9

Banned
Juana, la Beltraneja succeded as the Queen of Castile, while Isabel married Ferdinand and became queen consort of Aragon.

Alternatively, have Alfonso, Prince of Asturias (and son of John II of Castile) not die of a sickness/the plague/some random crap. I'm sure Castillian succession laws are agnatic-cognatic, and thus, would pass to the next male heir, which meant he'd be king over either Henry's daughter Joanna or Henry and Alfonso's half-sister Isabella.
 
Alternatively, have Alfonso, Prince of Asturias (and son of John II of Castile) not die of a sickness/the plague/some random crap. I'm sure Castillian succession laws are agnatic-cognatic, and thus, would pass to the next male heir.

I actually made a thread on that, but then someone said it wouldn't change much and that unification would happen some time anyway.
 

Razgriz 2K9

Banned
I actually made a thread on that, but then someone said it wouldn't change much and that unification would happen some time anyway.

Somehow, I'd doubt that. So long as Alfonso sires a male heir, Castile will not be under a personal union with either Portugal or Aragon (and that would probably be the optimal solution to the scenario.)
 
Alternatively, have Alfonso, Prince of Asturias (and son of John II of Castile) not die of a sickness/the plague/some random crap. I'm sure Castillian succession laws are agnatic-cognatic, and thus, would pass to the next male heir, which meant he'd be king over either Henry's daughter Joanna or Henry and Alfonso's half-sister Isabella.

He was actually crowned King in place if his brother nod was to marry his 'niece' Joanna to secure his claim to the throne. This would preserve an independent Castile and Aragon. Interesting.
 

katchen

Banned
If Charles, prince of Viana, survives to succeed his father, Isabella can still marry Ferdinand without uniting Castile and Aragon. This has the unfortunate side effect that it results in uniting Navarre and Aragon.
A united Navarre and Aragon might not be unfortunate. It would be a buffer between Castille and France and tie Euskadera (the Basque regions together with Catalonia. If "Navarragon" was able to get San Sebastian, Bilbao, both or both and Santander as Atlantic seaports, the combined state could be a viable colonial power, at least in the 16th-18th Centuries and possibly beyond. And Euskadera is rich in iron and coal for industrialization.
 
The absolutest latest save for an independent crown of Aragon would be the Succession War. After that point, Aragon and Castille are too culturally and institutionally unified. But before, Aragon was still its own kingdom, with its own common law and institutions, simply sharing the same king as Castille (although half of Aragon was culturally heavily castillianized).

How could the Succession war play out so this could be possible? In principle, the British were worried about France uniting with Spain upsetting the balance, and then about Austria uniting with Spain being just as bad. Could have they somehow thought that splitting Spain in two was the best way to serve their interests?
 
A united Navarre and Aragon might not be unfortunate. It would be a buffer between Castille and France and tie Euskadera (the Basque regions together with Catalonia. If "Navarragon" was able to get San Sebastian, Bilbao, both or both and Santander as Atlantic seaports, the combined state could be a viable colonial power, at least in the 16th-18th Centuries and possibly beyond. And Euskadera is rich in iron and coal for industrialization.
The ruler of Navarragon also has a claim to the French throne...
 
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