Here I had some small hope she was beginning to understand her real daughter doesn't hold a candle to the fake one. Sadly here we are with her plotting violence towards her intellectually superior daughter.
What gets me is.. it said at some point that the Duchess used to be a knight? I mean, I know it's more 'noble' than a maid, but it's not like either daughter is a pure blood aristocrat (ahh the inbreeding!)