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 |
| Costume & Make-Up | Francisco Puyol | Makeup & Hair |
| Art | Sigfrido Burman | Production Design |
| Writing | Francisco Villaespesa | Theatre Play |
| Costume & Make-Up | José D'Hoy | Costume Designer |
| Crew | José D'Hoy | Technical Advisor |
| Costume & Make-Up | Manuel Pertegaz | Costume Designer |
| Sound | Juan Quintero | Original Music Composer |
| Writing | Juan de Orduña | Screenplay |
| Writing | Vicente Escrivá | Screenplay |
| Camera | Alfredo Fraile | Director of Photography |
| Camera | Antonio Ibañez | Still Photographer |
| Art | Antonio Luna | Property Master |
| Directing | Fortunato Bernal | Assistant Director |
| Directing | Joaquín Vera | Second Assistant Director |
| Editing | Petra de Nieva | Editor |
| Production | Enrique Balader | Production Manager |
| Production | Sinesio Isla | Production Secretary |
| Camera | Salvador Gil | Camera Technician |
| Production | Tomás de la Plaza Alonso | Production Secretary |
| Sound | Jaime Torrens | Sound Engineer |
| Camera | Francisco Sempere | Camera Operator |
| Art | Francisco Prósper | Construction Coordinator |
| Sound | Gabriel Besagañas | Sound Assistant |
