WI: No Trastamaras

What if the Crown of Castile defeated the Trastamaras? What would be the effect on Spain, Europe and the world? What if?
 
I didn't quite understand what you meant by the Crown of Castile defeating the Trastamaras. Did you mean that Pedro I wins the 1366-69 Castilian Civil War?

If so, I'm afraid I don't have an exciting answer. From Enrique II to Juana all the Trastamaras were very different people and they'll all be butterflied away and it's hard to predict the character of who'd reign in their place.

If the Barcelona dynasty still dies out, a Castilian prince is still a very good candidate to take the Crown of Aragon.

Butterflies will hardly allow the coincidence of precisely a Castile-Aragon-Burgundy-Habsburg union of crowns taking place. But some Iberian and European consolidation with come along, each variation with its own butterfly effect waves.
 
I didn't quite understand what you meant by the Crown of Castile defeating the Trastamaras. Did you mean that Pedro I wins the 1366-69 Castilian Civil War?

If so, I'm afraid I don't have an exciting answer. From Enrique II to Juana all the Trastamaras were very different people and they'll all be butterflied away and it's hard to predict the character of who'd reign in their place.

If the Barcelona dynasty still dies out, a Castilian prinxce is still a very good candidate to take the Crown of Aragon.

Butterflies will hardly allow the coincidence of precisely a Castile-Aragon-Burgundy-Habsburg union of crowns taking place. But some Iberian and European consolidation with come along, each variation with its own butterfly effect waves.

That's what I mean. Any ideas?
 
Well, if he is not defeated and killed in 1369, he still has much time to have children.

Unless your goal is not to have Henry of Trastamara defeated but to have a Plantagenet king in Castile.
 
Well, if he is not defeated and killed in 1369, he still has much time to have children.

Unless your goal is not to have Henry of Trastamara defeated but to have a Plantagenet king in Castile.
You could have Pedro consumate his marriage with Blanche of Bourbon..
 
Either Pedro has a son or John and Constance have a son who becomes the first Plantagenet King of Castile while his half-brother usurps the English throne.
 
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