What if the Hundred Years War was..

In my timeline Casimir III of Poland marries Bonne of Bohemia but their daughter marries the French King from the House of Valois if the Beligrents of the Hundred Years War would be Poland, Bohemia and France versus Brandenburg-HRE and England which faction would win?
 
Well, this is a hard question.
If the HRE (i believe Brandenburg was a part of it) was on their side, I still don't think England can win.
Not back then they couldn't, but if the French got bogged down in Germany the English may be able to launch a few successful campaigns.

But still, back then an English invasion of France isn't going over well they were out manned (and numbers did matter back then.)
 
Brandenburg is part of the HRE, yes.

So is Bohemia - although its certainly possible for the King of Bohemia to be at war with the Emperor.
 
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