habsburg empire

I’m OTL, Phillip II of Spain and his third wife, Elisabeth of Valois had two daughters, Isabel Clara Eugenia and Catalina Micaela, but what if they were both sons (Named Philip and Ferdinand respectively)? I know Don Carlos’s death may be butterflied, but at the same time Philip didn’t exactly...

Taking into account OTL size of his family, impact should be massive. Until 1526 not much change, but then? Is Ferdinand eventually seek for annulment of his marriage with Anna Jagiellon (risky, considering his struggle for Hungarian throne, pissing of her uncle Sigismund would not be the best...

Let's just say during the Great Eastern Crisis, Germany in attempt to satsain there alliance with Russia supports Bulgaria and tells the Austro-Hungarians to get out of Bosnia. Or a more reasonable and at the very least in 1887 Russia and Germany support the unification of Bulgaria and the both...

PoD is vert easy-some unfortunate accident happens to Emperor Charles V, resulting in his premature death in summer 1527, ending personal union between Spain and Holy Roman Empire much earlier than IOTL. So baby Felipe II is heir of Spain and Burgundy (with Isabella of Portugal as regent in...

The pregnancy of Queen Marie Louise of Spain surprised herself most of all: she knew she was not a virgin, but she had thought she would die without ever having had any children. She had quietly bore the criticism of the childless state of her marriage, even when she wanted to scream that it was...

The OTL end result of the seemingly endless slogging match that was the Italian Wars was an overwhelming Habsburg victory, with them gaining and keeping control of Milan and Naples. What would be the effects on both branches of the dynasty (Spanish and Austrian) if they instead lost both of...

"Not being incestuous" would probably help, but what else? EDIT: I meant the empire of Charles V, Holy Roman Emperor

Like it says on the tin. Could the House of Habsburg, assuming lots and I mean lots of things go right for them, plausibly impose their power over the principalities and electorates scattered throughout the HRE in the period starting with the onset of the Protestant Reformation and the ending...