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On the topic of HYW battles going the wrong way for the English (i have made previous threads on Crécy and Agincourt)...
Suppose that John II of France and his army manages to defeat and rout the English at the Battle of Poitiers, in 1356 AD. Either that, or the battle is avoided through negotiations.
Now that the English have been more successfully removed from Aquitaine, what happens to France then? John II and his court are free, so can they negotiate for more lenient terms at the Treaty of Bretigny?
Assuming that Edward, The Black Prince, perishes in the battle before leaving any issue, what are the effects on English court politics from there on in? If he doesn't perish, will he decide to refocus his political efforts towards England proper?
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