PrePub - Ascendance of a Bookworm

Certainly true, but Sylvester is very unlikely to do that, knowing fully well how averse Rozemyne is to hurting others. And Trauerqual made it very clear that in his opinion, everyone including the royal family should do what the holder of the Grutrissheit says, so I don't think he would make any demands like that. If they manage to convince the rest of noble society that this war was an affair between duchies and seperate from Detlinde's rebellion against the crown, there is a good chance I think, to allow Rozemyne to deal with it as she sees fit. But that's a really big if....

If however the public perception is that Georgine's attack was part of the rebellion, you are definitely right, that things are unlikely to stay in Rozemyne's control, albeit even then I don't think it'll be Trauerqual and Sylvester who'll be the ones to cause issues. The bigger issue is probably Klassenberg. After all it was the Eglantine's grandfather/adoptive father the now previous Aub Klassenberg, who was the main driving factor, behind forcing Trauerqual to enact the purge and he still has a lot of political power in his duchy even now, after stepping down.

Then there are also the people of Immerdink (I think), who suffered multiple dead children at the Ternisbefallen attack, who'll likely be clamouring for revenge, what with Werkerstock also being the place were the Ternisbefallen almost asuredly came from.