Responses
Their primary loyalty is first with the Duke, in regards to her (whom they aren't 100% sure is his daughter) she will be a secondary concern. I don't the Knight who requested she do this has a clue just how bad the count really is. Remember, everyone still thinks he is such a "nice" guy.
So they fucking know that they’re trying to kill her but they STILL want her a CHILD to go back to her abusive household