Generally:
1) If they have a mission to annex a province its almost always an instant -200 (at least -100) if you hold the province. Recall the infamous "get a presence in India" mission...
2) If you are weaker than they are, generally the "wants your provinces" malus is larger
3) Provinces required for nation forming decisions will almost always be desired - taking Novgorod or Danzig / Marienburg will give you at least -50 with Muscovy and Poland respectively.
Also, presumably Burgundian inheritance fired, I think that gives France a core on Friegrafschaft, what did you expect would happen?
1) If they have a mission to annex a province its almost always an instant -200 (at least -100) if you hold the province. Recall the infamous "get a presence in India" mission...
2) If you are weaker than they are, generally the "wants your provinces" malus is larger
3) Provinces required for nation forming decisions will almost always be desired - taking Novgorod or Danzig / Marienburg will give you at least -50 with Muscovy and Poland respectively.
Also, presumably Burgundian inheritance fired, I think that gives France a core on Friegrafschaft, what did you expect would happen?