Effects of a unified Iberia (1500s) on rest of Europe/Reformation

On these forums the idea of an earlier unified Iberia has already been the subject of some discussion - with the POD being Portugal's Miguel da Paz, who died infancy, instead surviving and becoming King of Portugal, Castile and Aragon. Thus the Habsburgs never end up ruling Spain.

I'd be particularly interested to know what the effects are on the rest of Europe and how it might affect how the Reformation takes place.

Germany: If TTL's Charles V (or equivalent) still inherits the Franche-Compte, Burgundian Netherlands and Austria, as well as becoming Emperor, would he be able to consolidate control in the Empire somehow, even including Flanders and the Netherlands in some kind of proto-Germany? Not a nation-state, but some centralization that he might intend to last? Or are the interests of his realms still too disparate, and the idea of centralization not even on the radar?

Italian Wars: The Aragon/Naples side of this Iberian union presumably commits it to tussling with the French for some kind of Italian supremacy. What sides do other powers take if they get involved - the Austrians, the English, the Turks, and the Pope? Which of the two countries - France or Spain - would now be seen by others as the more powerful country, and therefore either to side with in order to win, or oppose to preserve some sort of balance?

Reformation: If the majority of TTL's Charles V's lands were to rebel against the Catholic Church, is it at all conceivable that he either himself goes Lutheran (which I guess means removing the 'Holy Roman' from 'Empire'), or that some kind of change in the Catholic Church itself takes place?

England: If Henry VIII still marries Catherine of Aragon, the way the Italian wars proceed affects when, or maybe even whether, England breaks from Rome. Henry wanted the annulment of his marriage at exactly the time that the Pope was the prisoner of his then wife's nephew, which must have coloured the Pope's lack of a response to say the least.
 
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THe Hapsburgs, being less rich, focus less on wars outside the empire, and more on consolation and consolidation.
 
Germany: If TTL's Charles V (or equivalent) still inherits the Franche-Compte, Burgundian Netherlands and Austria, as well as becoming Emperor, would he be able to consolidate control in the Empire somehow, even including Flanders and the Netherlands in some kind of proto-Germany? Not a nation-state, but some centralization that he might intend to last? Or are the interests of his realms still too disparate, and the idea of centralization not even on the radar?
To say it will centralize is uncertain (a lot can happen), but at least you have a less absent Emperor may have less division, maybe more secular princes try to remain in the church in order to be on the Emperor's good side, but you may have a more "Burgundian" than "Austrian" Emperorship, so problems with France. OTOH the Ottomans are still there, creeping in Hungary, Mohács may not be as destructive as OTL, but the Magyar-Bohemian Jagiellons are pretty helpless against Suleiman, even if Louis II doesn't die expect him to be in deep Habsburg support, so the Eastern Front is still there, more hindrance for the HRE.

Italian Wars: The Aragon/Naples side of this Iberian union presumably commits it to tussling with the French for some kind of Italian supremacy. What sides do other powers take if they get involved - the Austrians, the English, the Turks, and the Pope? Which of the two countries - France or Spain - would now be seen by others as the more powerful country, and therefore either to side with in order to win, or oppose to preserve some sort of balance?
More or less the same as OTL, expect the Spanish side and the Imperial sides aren't lead by the same guy post-League of Cambrai, maybe it'll favor the French, maybe not as the Spanish were the heavy weight in the fight and they are still there, maybe you have less Austrians and more Tercios, and the Habsburgs focus more on their Burgundian holdings rather than Italy (they'll still want the French out of Milan though).

Reformation: If the majority of TTL's Charles V's lands were to rebel against the Catholic Church, is it at all conceivable that he either himself goes Lutheran (which I guess means removing the 'Holy Roman' from 'Empire'), or that some kind of change in the Catholic Church itself takes place?
The majority of OTL Austrian Habsburg holding became protestant during the 16th and earlier 17th century, the amount of Habsburgs that came close to converting? Zero. Converting offer literally no benefit to the Imperial House, in fact it produces way more harm, like total diplomatic isolation (the French now have a even easier way to justify war and the Spanish don't want to deal with heretics), you may even get OTL protestants staying in the Roman Church to preserve "Imperial Liberties" against the heretic Emperor, plus some Catholic Habsburg for extra family drama.

England: If Henry VIII still marries Catherine of Aragon, the way the Italian wars proceed affects when, or maybe even whether, England breaks from Rome. ITTL Henry wanted the annulment of his marriage at exactly the time that the Pope was the prisoner of his then wife's nephew, which must have coloured the Pope's lack of a response to say the least.
Who knows? The situation was pretty singular in OTL, who is to guess that the Pope wouldn't be wary of Spanish dominance over Italy, war against them and get sacked anyway?
 
The majority of OTL Austrian Habsburg holding became protestant during the 16th and earlier 17th century, the amount of Habsburgs that came close to converting? Zero.


Might be easier to just extinguish the Habsburgs altogether.

Charles V's father, Philip of Burgundy, was the only son of an only son, so it wouldn't be difficult. With the Imperial throne up for grabs, a Protestant Emperor would be perfectly possible. And depending who Juana marries, you could still get your Iberian union. After all two of her sisters married Portuguese princes.
 
For starters, I don't think they will get the Philippines..especially if the United Iberians get the spice islands, I think the Iberians could get the Spice Islands which would mean the Bruneians get more control in the Philippines..
 
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