Split of Habsburg lands without the Jagellonian inheritance?

Hello, dear community of AlternateHistory.com!
I have a quick question for you:
Would Charles I/V king of Spain and emperor of HRE split his empire between his brother and son without his brother, Ferdinand inheriting the czeh and hungarian thrones? If yes, how would it look like? If no what would happen to Ferdinand and his line?
 
The split actually happened before Philip II was born. It was how Charles and Ferdinand settled the Habsburg-Burgundy and Trastamara inheritances, in most parts usually the eldest son was the sole heir, but in the Austrian Lands as was not uncommon in the Empire each son was entitled to a share. Naturally Ferdinand claimed that applied to the entire inheritance and Charles initially also claimed his share in the Austrian Inheritance. Eventually it solved, when Charles agreed to give Ferdinand his Austrian share, but Ferdinand in turn accepted Charles got everything else.
This compromise was also reached to make Ferdinand a more appealing husband for Anne of Bohemia & Hungary for the Bohemian and more importantly Hungarian Estates. Ferdinand needed a solid powerbase to be of any help against the Ottomans and Austria, like Bohemia, would be next if Hungary (&Croatia) fell.

In short the Austrian Habsburgs would just have the Austrian Hereditary Lands and still be the Habsburg candidates for the Imperial Throne. Maybe if an ATL Mary (daughter of Charles V) marries and ATL Maximilian II (son of Ferdinand) she gets the Burgundian Inheritance as dowry .
 
To echo what I think Janprimus is saying, I don't see how you keep Austria and Bohemia from going to Ferdinand. These were not part of the inheritance for Charles V. They were elected monarchies, and elected Ferdinand, who married into the royal families of these monarchies. And if he gets them, it makes sense for him to get the Austrian duchies.

The swing crowns in any division are the imperial title, the Netherlands, and Lombardy. The imperial title is also elective and I just can't see the Electors preferring Philip to Ferdinand. This did lead to the anomaly that the less powerful branch of the Habsburgs wound up with the imperial title. Since the Netherlands and Lombardy were within the boundaries of the Holy Roman Empire, it would have made sense to give them to the Austrian branch. There were various proposals later to do something like this with the Netherlands to try to resolve the war there, and both the Netherlands (part of it) and Lombardy wound up with the Austrian branch eventually. This division would have made more sense, especially as Philip wound up getting Portugal. However, this requires more hindsight than is really possible, they didn't know that the Spanish branch would absorb Portugal or be unable to maintain control over the Netherlands.

Also, division among family members historically has been the standard method of handling large collections of crowns such as the Hapsburg inheritance. The surprising thing is that Philip wound up with so much of it.
 
Thank you so much for your answers! They help a lot
To echo what I think Janprimus is saying, I don't see how you keep Austria and Bohemia from going to Ferdinand. These were not part of the inheritance for Charles V. They were elected monarchies, and elected Ferdinand, who married into the royal families of these monarchies. And if he gets them, it makes sense for him to get the Austrian duchies.
I think you thought Hungary instead of Austria in your first sentence, right? By the way I didn't think about why Ferdinand does not inherit the thrones of Bohemia and Hungary, maybe the Jagellonian dynasty in Hungary survives, or something else.
 
Charles and Ferdinand had settled the Castille-Aragon-Austria-Burgundy inheritance by 1521. However Charles had been king of Castille & Aragon since 1516 (death of Ferdinand of Aragon), so best case for Ferdinand, before Bohemia & Hungary become an issue, would be Ferdinand getting Austria, Burgundy & the Low Countries and the being made the Habsburg candidate for the Imperial Throne.
However Charles V (of Ghent) grew up in Burgundy and the Low Countries, so he wouldn't give that up easily, moreover not wanting to become to Habsburg Imperial Candidate seems out of character. Still it's an imperial election and if Charles needs to choose between Francis of France or his own brother Ferdinand, then he would choose his own brother.

As for most of the territories, the only part, which could change hands might be Burgundy & the Low Countries, an ATL where Charles never becomes Emperor, but Ferdinand is elected instead, helps making that easier since ITTL Charles has less need of an own Hausmacht in the Empire. Though traditionally the eldest son inherited most in Spain and Burgundy.
 
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