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.
Unfortunately the movie La espada negra is not yet available on HBO Max.
| 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 |
