alternatehistory.com

While reading about the Francization of Brussels, it got me wondering. Say Charles the Bold wins at Nancy and has a son after that, thus keeping the Duchy of Burgundy united with the Netherlands. If this continued for several centuries (say somehow into the 1800s) would it be possible that French would overtake Dutch as the majority language in Burgundy (because of its use in administration and elsewhere, gradually filtering down to the average people), so by the 1800s the Low Countries were primarily French-speaking? Would that be conceivable?
Top