Kind of random idea. Belgian Revolution wasn't so successful (for the rebels). France annaxed most of French speaking areas of the Netherlands, while Dutch keep, well, all the Ducth speaking parts. However, Great Powers wanted to create buffer state between the new French territories and Prussia and gave independence to province of Limburg and made it join Luxembourg as the othe rpart of federal monarchy. Even the new buffer state was meant to stay neutral it joined German Confederation (to make Prussia little more happier since it didn't get any new land).