Duke Preminger is Nadjas grandfather and head of the Preminger household. He values social status and the continuation of his family's good name. When Colette disobeyed him to be with Raymond, he was upset. Despite having a poor relationship with his son Herman, he wishes for his title to go to his granddaughter Nadja rather than to him. To locate Nadja, Duke Preminger hires private investigators Rosso and Bianco.