Henry VII son Arthur survives- how is England changed?

This one has been puzzling me for ages. What would have happened if Arthur, Prince of Wales son of Henry VII survives his illness, becomes king and his younger brother Henry becomes an unknown prince. How would England change? Would there be no break with the Roman Catholic church? No future tension with Spain and France? Is there any significant change at all? What do you think?
 
Where to start, Henry is such a huge persona that had such a dramtic effect on our history....unless Arthur is an exceptional individual things will be very different. But that being said, if Arthur can just father an heir, thins may just be smoother.

Imho, this is one of the biggest and toughest what ifs of english history.
 
Catherine was obviously fertile, but something was off with the children she gave birth to. I imagine the pattern of many children vs. few survivors would be the same with Arthur. Especially since Arthur was never particularly healthy to begin with and his own mother didn't have the best success rate either (eight children, of which Arthur, Edward, Edmund, Elizabeth and Katherine died young).

England would not break with Rome and be sucked into the Hapsburg orbit.

King Henry VII would not waste time after Elizabeth of York's death and remarry to Joanna of Naples, instead of holding out for either Catherine or Joanna la Loca.

Henry of York would likely marry Eleanor of Austria, assuming Philip I is shipwrecked in England as OTL.

Margaret would still marry King James, but Mary would most likely marry either the Emperor Charles or another Habsburg lackey (Savoy maybe?).

I envision England constantly being sucked into the continental wars, eventually inherited by a Hapsburg princeling.
 
Catherine was obviously fertile, but something was off with the children she gave birth to. I imagine the pattern of many children vs. few survivors would be the same with Arthur. Especially since Arthur was never particularly healthy to begin with and his own mother didn't have the best success rate either (eight children, of which Arthur, Edward, Edmund, Elizabeth and Katherine died young).

England would not break with Rome and be sucked into the Hapsburg orbit.

King Henry VII would not waste time after Elizabeth of York's death and remarry to Joanna of Naples, instead of holding out for either Catherine or Joanna la Loca.

Henry of York would likely marry Eleanor of Austria, assuming Philip I is shipwrecked in England as OTL.

Margaret would still marry King James, but Mary would most likely marry either the Emperor Charles or another Habsburg lackey (Savoy maybe?).

I envision England constantly being sucked into the continental wars, eventually inherited by a Hapsburg princeling.

If Arthur survive is almost sure who England would not break with Rome, but the other things are at least improbable:

a) The surviving of the alliance between England and Spain is uncertain (specially if Katherine don't give Arthur an healthy baby boy in few years)

b) a survival of Arthur is very likely totally butterflied his mother death (as OTL the two death was related), thus his father don't remarry...

c) Margaret wedding is really likely to happen as OTL in any case but an Habsburg wedding for Mary is really unlikely (Emperor Charles is likely marry as OTL Isabella of Portugal because he need an Iberic Queen for pacifying the Spanish Cortes and his brother Ferdinand need to marry as OTL Anne of Bohemia and Hungary as required by the treaty of alliance between his grandfather (Emperor Maximilian) and her father).

d) also only a betrothal between Henry and Eleanor of Austria is almost impossible because she can have easily much better than a second son (OTL her and her three sisters was always betrothed or married only to Kings or heirs of Kings and she was the eldest)

e) The most likely option for England in that case is who Arthur can live only few years more than his father (being King for at least five but not more than ten/eleven years) and then dying without heirs and thus making the Duke of York King Henry VIII as OTL (but without marry Catherine as OTL thus preventing both the break with Rome and the ending of the Tudor Dinasty)
 
Regarding the wedding options of the Habsburgs, some things could be different.
Anna of Bohemia & Hungary was to marry a Habsburg archduke, but Maximilian was clever enough not to specifically mention, which one in the treaty.
Furthermore the Habsburgs actually favored a French or an English princess as a spouse for Charles V. However when that basically took too long, they started to look for alternatives. Before Mary Tudor eventually married Louis XII of France, she was also considered as a marriage candidate for Charles V. After that wedding cardinal Wolsey did offer the young Mary Tudor (daughter of Henry VIII), but she was much too young for Charles, who really needed a heir.

Still with Charles V ruling Castille and Aragon, and with no French or English princess old enough to marry, a Portuguese princess like IOTL and archduke Ferdinand marrying princess Anna like IOTL seems likely.
Changing that, like Charles marrying Anna instead, would require that the Habsburgs never inherit 'Spain' (or somehow Ferdinand inherits the Spanish kingdoms, which is rather unlikely). OTOH such a PoD will most likely be that early, that more things will change.
 
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