Enter the Hall of Ablution and complete the statue puzzle: The rich and poor woman need to be facing each other, the three men facing the man on a horse, and the man on the horse facing the side of the poor woman.Head straight ahead and enter the silver door in the corner of the Courtyard on your right.Use your Courtyard key to open the door opposite you on your right. Enter the Courtyard by heading through the Main Hall (1F) to the Dining Room.Enter the room that appears and open the chest to get the Courtyard Key.
Pick up the Sanguis Virginis wine in the Kitchen.
Follow the rope on the floor to a hole in the wall, which you need to interact with to hop through and escape the daughter.