Kroon van Castilië, 1520. De Comuneros komen in opstand tegen Karel I, koning van Castilië en Aragon en keizer van de Spaanse monarchie. Terwijl Juan de Padilla, leider van de opstand, en zijn kapiteins, Juan Bravo en Francisco Maldonado, vechten tegen de keizerlijke legers, heerst zijn vrouw, María de Pacheco, over de stad Toledo, de hoofdstad van de rebellen.
Nee, helaas is La Leona de Castilla nog niet beschikbaar op Netflix in Nederland.
| Directing | Juan de Orduña | Director |
| Writing | Francisco Villaespesa | Theatre Play |
| Writing | Vicente Escrivá | Screenplay |
| Writing | Juan de Orduña | Screenplay |
| Costume & Make-Up | José D'Hoy | Costume Designer |
| Crew | José D'Hoy | Technical Advisor |
| Costume & Make-Up | Manuel Pertegaz | Costume Designer |
| Costume & Make-Up | Francisco Puyol | Makeup & Hair |
| Art | Sigfrido Burman | Production Design |
| Sound | Juan Quintero | Original Music Composer |
| Camera | Alfredo Fraile | Director of Photography |
| Camera | Francisco Sempere | Camera Operator |
| Camera | Salvador Gil | Camera Technician |
| Camera | Antonio Ibañez | Still Photographer |
| Art | Francisco Prósper | Construction Coordinator |
| Art | Antonio Luna | Property Master |
| Editing | Petra de Nieva | Editor |
| Production | Enrique Balader | Production Manager |
| Directing | Fortunato Bernal | Assistant Director |
| Production | Sinesio Isla | Production Secretary |
| Directing | Joaquín Vera | Second Assistant Director |
| Production | Tomás de la Plaza Alonso | Production Secretary |
| Sound | Jaime Torrens | Sound Engineer |
| Sound | Gabriel Besagañas | Sound Assistant |
