As part of that treaty it was agreed that you would have no part in the council and would lose your title of Minister of Justice.
As the deadline for such a move has long passed, it is, in effect you/Mercinae who has broken the treaty.
Catt was also not a baron at the time of the attack, so again, no treaty was broken.
Marie of Parrius
Written by my hand on the 4th of Ilmarael, in the year 1021.