Mother, Her Name is... Episode 16

Rosalie struggles through etiquette and fencing lessons and attends her first ball as Oscar's distant relative. Jeanne and Nicholas pose as Count and Countess de la Motte to con money from the ball's hostess. Rosalie's quick popularity attracts Charlotte's scorn, who humiliates her to tears and causes her to run from the ballroom. As she leaves, Rosalie sees Jeanne, who is shaken by the knowledge of her mother's death and the fact that Rosalie is being cared for by a family richer than her. Oscar confronts Polignac over her daughter Charlotte's behaviour, and she begins to view the Head Commander as a threat.