WI Mary of Burgundy marries Ferdinand II of Aragon

As the only child of Charles the Bold, Mary was heiress to a vast and wealthy domain, made up of the Duchy of Burgundy, the Free County of Burgundy, and the majority of the Low Countries, and her hand was eagerly sought by a number of princes. The first proposal was received by her father when she was only five years old, to marry the future Ferdinand II of Aragon who was 10 years old at the time.
WI they were married indeed in (let's say) 1470? How is this marriage altering History? Any thoughts?
 
Whoever she was going to marry was going to have to be a strong prince with some military strength a point both Charles and his final wife Margaret of York were aware of. Given that a proportion of her inheritance were lands the Duke held as a vassal of the French King and given that on his death technically they should escheat back to the french crown if Mary wanted to keep them she would at some point face French agression.
Ferdinand of Aragon had his own axe to grind with France over Rousillion which technically had belonged to the crown of Aragon - on that score the marriage was politically not a bad one. But it would have meant war.
However Ferdinand had bigger fish to fry - in 1462 the King of Castille's wife gave birth to a daughter Juana assumed by everyone to be illegitimate helping to promote civil war in Castille. In 1467 the hope of the Castillian nobility the King's half brother Alfonso died leaving his sister Isabella heir if as the nobility insisted that Juana was not the King's daughter - in 67 Isabella and her brother made a deal in which he named her his heir in return she agreed to marry his choice of husband she reneged and secretly married Ferdinand in 69 she succeeded her half brother as Queen of Castille and Leon in 74. Ferdinand would have been very unlikely to have chosen Mary over the heir of Castille.
Even had Ferdinand and Mary gone through a formal betrothal in the mid sixties then it's likely he'd have been able to get out of it to marry Isabella.
 
Whoever she was going to marry was going to have to be a strong prince with some military strength a point both Charles and his final wife Margaret of York were aware of. Given that a proportion of her inheritance were lands the Duke held as a vassal of the French King and given that on his death technically they should escheat back to the french crown if Mary wanted to keep them she would at some point face French agression.
Ferdinand of Aragon had his own axe to grind with France over Rousillion which technically had belonged to the crown of Aragon - on that score the marriage was politically not a bad one. But it would have meant war.
However Ferdinand had bigger fish to fry - in 1462 the King of Castille's wife gave birth to a daughter Juana assumed by everyone to be illegitimate helping to promote civil war in Castille. In 1467 the hope of the Castillian nobility the King's half brother Alfonso died leaving his sister Isabella heir if as the nobility insisted that Juana was not the King's daughter - in 67 Isabella and her brother made a deal in which he named her his heir in return she agreed to marry his choice of husband she reneged and secretly married Ferdinand in 69 she succeeded her half brother as Queen of Castille and Leon in 74. Ferdinand would have been very unlikely to have chosen Mary over the heir of Castille.
Even had Ferdinand and Mary gone through a formal betrothal in the mid sixties then it's likely he'd have been able to get out of it to marry Isabella.

How about Alphonse stripping her from her position as heir on the event of the secret marriage with Ferdinand... After that he would worth nothing to Ferdinand and Mary would be a bigger fish to catch...
 
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