A young woman of exceptional beauty, Ruzena is Bohemian. Joachim has difficulty thinking that Ruzena had a conventional upbringing. She has black hair and inviting eyes, and her German is not fluent. Ruzena is attractive because she is sensual and almost alien to Joachim. When Joachim is called to Stolpin for an extended time because of his father, Ruzena decides he has forsaken her and she returns to prostitution. Joachim tries to get her back and then to provide money for her, but she rejects his advances. Finally she takes his money, but spends it all quickly. Ruzena is seen briefly in Part Two, at Esch's theatre, and has the reputation as a crazy Hungarian.