Subdueing new acquisitions

[AussieGiant]

Knock down Poland's school (university). That will reduce the clamor for reform to 0. You can build a new one later on when a new town pops up in Poland.

Yes that is absolutely necessary. The two main issues are clamour for reform and resistance to foreign occupation. Knocking down the uni will remove the first one and all the other recommendations should solve the second.

That's the first thing I did when I took Paris.

-EDIT-

Plus I do exactly what Daveybaby does too.