did they plan to ki ll Miguel's fiancee? is it connected to the emperor being suspicious o...

did they plan to ki ll Miguel's fiancee? is it connected to the emperor being suspicious of the mf empress?

i know the empress is about to get miguel to marry dolores, oscar's half sis. and that will lead to oscar's blackmail to Carcel to go to war.. seems dumb and shallow plan but i mean the mother and son combo is indeed trashy so of course their plan is just garbage