Kingdom of Castile, 15th century. A group of nobles, who question the dynastic legitimacy of Princess Juana, daughter of King Enrique IV, conspire with the purpose of overthrowing him.
| Directing | Francisco Rovira Beleta | Director |
| Editing | Antonio Ramírez de Loaysa | Editor |
| Art | Gil Parrondo | Art Direction |
| Directing | Isabel Mulá | Script Supervisor |
| Camera | Francisco Sempere | Director of Photography |
| Sound | Waldo de los Ríos | Original Music Composer |
| Writing | Carlos Blanco | Screenplay |
| Costume & Make-Up | Rafael Richart | Costume Designer |
| Costume & Make-Up | Agustín Jiménez | Wardrobe Supervisor |
| Production | Manuel Pérez | Production Director |
| Production | José Antonio Junceda | Executive Producer |
| Production | Carlos Blanco | Executive Producer |
| Directing | J. J. Bernós | Assistant Director |
| Art | Francisco Prósper | Assistant Art Director |
| Art | Julián Mateos | Set Decoration |
| Camera | Ricardo Andreu | Camera Operator |
| Camera | Fernando Perrote | Focus Puller |
| Camera | Julio Sánchez Caballero | Still Photographer |
| Costume & Make-Up | José Antonio Sánchez | Makeup Artist |
| Costume & Make-Up | Antonio Segovia | Assistant Makeup Artist |
| Costume & Make-Up | Josefa Rubio | Hairstylist |
| Costume & Make-Up | Blanca Sánchez | Assistant Hairstylist |
| Costume & Make-Up | María Luisa Durán | Seamstress |
| Editing | Blanca Guillén | Assistant Editor |
| Editing | Paloma Ramírez de Loaysa | Assistant Editor |
| Crew | Antonio Bueno | Special Effects |
| Lighting | Antonio Marqués | Gaffer |
| Camera | Ángel Gómez Martín | Key Grip |
| Sound | Luis Castro | Sound Effects |
