WI both princes Arthur and Henry had died in 1502?

If OTL is followed, Elizabeth of York will have another child, then die of complications from the pregnancy. Henry VII will then have to remarry. I think that marrying Catherine of Aragon is a very real possibility. Henry VIII was able to get Papal approval, and the alliance is still important for both Spain and England.

If Henry VII and Catherine have any surviving male children, then that is going to necessitate a regency for the child (I'm a supporter of naming the kid Edward). Let's say the marriage takes place in 1504, on the heels of Elizabeth's death. Edward is born in 1505, and Henry VII dies in 1507 (supposedly for exerting himself).

With Catherine as the Queen Mother and regent the king would probably be deeply Catholic. The Reformation in England would be completely changed. However, given her OTL example, she and Henry VII would need a lot of luck to have a surviving child.

I still prefer the idea of the OTL facts repeating ITTL, and make the child of Henry and Catharine (if any of them survives) be a daughter, just to see the chaos that would create.
 
With Catherine as the Queen Mother and regent the king would probably be deeply Catholic. The Reformation in England would be completely changed. However, given her OTL example, she and Henry VII would need a lot of luck to have a surviving child.

I still prefer the idea of the OTL facts repeating ITTL, and make the child of Henry and Catharine (if any of them survives) be a daughter, just to see the chaos that would create.

Henry VII had a better track record of having sons that Henry VIII, so I don't think its that far fetched that Catherine of Aragon would have a son.

Some kind of renewed dynastic conflict is in the cards, with an infant king and a young, foreign Queen Mother. With the winds of religious conflict blowing in from the continent, I think English history might start getting more interesting (and thats before looking at tortured Tudor court politics).

I'm going to nominate my top trouble maker right now- the Duke of Buckingham, Edward Stafford. He was a leader of the noble faction during Henry VIII's reign, and is probably on the Regency Council, and his father was the kingmaker behind the death of the Princes of the Tower and Richard III's ascension to the throne. If anyone leads a palace coup, whether its against Queen Margaret or the Queen Mother Catherine, it'll be Buckingham.
 
I think the issue is more over Henry VII's age, though obviously he's not yet old enough to be totally incapable of producing more children.
 
I'm going to nominate my top trouble maker right now- the Duke of Buckingham, Edward Stafford. He was a leader of the noble faction during Henry VIII's reign, and is probably on the Regency Council, and his father was the kingmaker behind the death of the Princes of the Tower and Richard III's ascension to the throne. If anyone leads a palace coup, whether its against Queen Margaret or the Queen Mother Catherine, it'll be Buckingham.

Henry Stafford had a claim of his own to the English throne so with an infant as King and a foreign Queen Mother it would have been easy to impose it...
 
I'm going to nominate my top trouble maker right now- the Duke of Buckingham, Edward Stafford. He was a leader of the noble faction during Henry VIII's reign, and is probably on the Regency Council, and his father was the kingmaker behind the death of the Princes of the Tower and Richard III's ascension to the throne. If anyone leads a palace coup, whether its against Queen Margaret or the Queen Mother Catherine, it'll be Buckingham.

In the case of an infant king with Catherine as Queen Mother, who would have interests to be a defensor of the young Edward VI? Also, could we see Catherine asking protection from her relatives in Spain (maybe with the formation of a "Castillian Guard" to defend the Queen Mother and her son)?
 
In the case of an infant king with Catherine as Queen Mother, who would have interests to be a defensor of the young Edward VI? Also, could we see Catherine asking protection from her relatives in Spain (maybe with the formation of a "Castillian Guard" to defend the Queen Mother and her son)?

I would say Charles Brandon might be a good choice. If you're looking for older men, then Richard Foxe and William Warham, Henry VII's most trusted advisers, are also options. Thomas Wolsey and Thomas More are also options. These men were devoted to the Tudor monarchy in OTL, and most were lower-born even if they were nobility, so none would have an interest in actually taking the crown. I think in particular Foxe and Warham could be relied upon to support Katherine's regency.

Henry Stafford had a claim of his own to the English throne so with an infant as King and a foreign Queen Mother it would have been easy to impose it...

Its Edward actually, Henry (his father) conspired against Richard III and lost his head. Edward Stafford is probably going to be on the regency council, and will definitely be viewed as the most dangerous person by those who support the Tudor regime.

The Tudors seemed to be able to destroy those who stood against them, particularly using the Star Court to great effect. If Katherine is as good a politican as Henry VIII thought she was then I'm going to predict and early and head-chopping end to Edward Stafford, whether he actually conspires against the regency or not.
 
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