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Pretty much as the tin says, what if Peter of Castile wins the Castilian Civil War instead of Henry of Trastamara?

Obviously this means the House of Trastamara doesn’t become the rulers of the Iberian nation’s and that the House of Ivrea remains in power for now-Peter only had two daughters, though.

Does Castile continue to be pro-Jewry? Peter had pro-Jewish policies that the Trastamara reversed.

What about relations with Aragon? Portugal?
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