I wrote this for the comment after you, but I think it's relevant here.
What the prince said was really pertinent. The level of aggression, brutality and insanity to arrange such an incident??!! For your own daughter??
Σ( ￣□￣||)
....The act is so beyond reasoning, that no one (even someone with an Einstein level intellect) would guess a father would go to that level.
Also, let's be real the act of r#%@ is a violation on another level. And for it be organised in a slum, when he's such a known snob??
Any safeguards wouldn't likely have been able to anticipate the level of the Duke's depravity.
Nor, that the Duke has a secret salon (that seems to be selling drugs and gambling...
How stupid can you be after everything, your family has done you still fall for their tricks?