Re: How to incite a revolution in another nation or get its territory without a war?
Inciting uprisings is practically impossible, especially if you are not in war with your target. Public order is only seriously threatened in Empire by universities and, in any case, there's nothing you can do to affect it. Even if a revolution indeed occurs, I doubt it will have any influence on diplomacy or that it will damage the relations between Saxony and Poland. The only tangible consequence is that the absolute monarchy in Dresden will be replaced by a Republic. In my opinion, your only option is to declare war on Rhineland and Saxony, hoping that Poland will not intervene. If they do, you could perhaps bribe them to remain out of the conflict.