The three areas share some similarities to the Low Countries, having most of their lands as part of the Holy Roman Empire and originating from the remnants of Lotharingia/Middle Francia. French influence over the region eventually led to their incorporation into the country.
Would it be plausible for the region to become united and stay an independent entity Belgium-style with a Oïl and German-speaking population, perhaps as a buffer state between the two powers? If so, what PoD would allow for its existence? At the minimum, the polity includes the Duchy of Lorraine, the Three Bishoprics, the Duchy of Bar, Strassburg, the Decapol, the Sundgau, and the County of Burgundy(Franche-Comté). Bonus points if the Duchy of Burgundy is included.
Would it be plausible for the region to become united and stay an independent entity Belgium-style with a Oïl and German-speaking population, perhaps as a buffer state between the two powers? If so, what PoD would allow for its existence? At the minimum, the polity includes the Duchy of Lorraine, the Three Bishoprics, the Duchy of Bar, Strassburg, the Decapol, the Sundgau, and the County of Burgundy(Franche-Comté). Bonus points if the Duchy of Burgundy is included.