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Maruchi Fresno as Isabel of Aragón |
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António Vilar as Dinis, King of Portugal |
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Luis Peña as Nuño de Lara |
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Fernando Rey as Infante Alfonso |
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José Nieto as Vasco Peres, the alderman |
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María Martín as Blanca |
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Juan Espantaleón as Pedro, the priest |
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Fernando Fernández de Córdoba as Pedro III de Aragón |
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María Asquerino as Leonor |
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Virgílio Teixeira as Alfonso Sánchez |
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Milagros Leal as Doña Betaza |
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Gabriel Algara as Juan Velho |
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Barreto Poeira as Álvaro, the squire |
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Julieta Castelo as Doña María Ximénez |
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Carmen Sánchez as Doña Constanza |
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Emilio G. Ruiz as Infante Pedro |
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Manuel Guitián as Ramiro |
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Joaquina Almarche as María de Molina |
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Rafael Luis Calvo as Fernán Ayres |
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José Prada as Martín Gil |
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Manrique Gil as Don Juan Manuel |
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Félix Fernández as Barredo |
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Joaquín Puyol as |
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José Franco as Froilas |
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Luisa España as Isabel as a child |
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Santiago Rivero as |
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Julio F. Alymán as |
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Francisco Hernández as Villafranca |
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Elvira Real as |
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Mercedes Castellanos as María (uncredited) |
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Alfonso de Córdoba as Juan (uncredited) |
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Fernando Fresno as Físico (uncredited) |
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José Jaspe as Estevao (uncredited) |
| Directing | Aníbal Contreiras | Director |
| Directing | Rafael Gil | Director |
| Directing | Henrique Campos | Director |
| Writing | Antonio Abad Ojuel | Writer |
| Writing | Luna de Oliveira | Writer |
| Production | Aníbal Contreiras | Producer |
| Writing | Tavares Alves | Writer |
| Writing | Aníbal Contreiras | Story |
| Writing | Rafael Gil | Writer |
| Production | Cesáreo González | Producer |
| Writing | Antonio Tudela | Dialogue |
| Costume & Make-Up | Vladimir Tourjanski | Makeup Artist |
| Editing | Juan Serra | Editor |
| Production | José Manuel Goyanes | Production Manager |
| Art | Emilio Alonso | Settings |
| Directing | Antonio del Amo | Script Supervisor |
| Costume & Make-Up | Marbel | Costume Design |
| Art | Antonio Luna | Props |
| Art | Enrique Alarcón | Production Design |
| Art | Eduardo Torre de la Fuente | Art Direction |
| Camera | Alfredo Fraile | Director of Photography |
| Camera | Manuel Berenguer | Director of Photography |
| Sound | Ruy Coelho | Music |
| Production | Vicente J. Fayos | Production Manager |
| Sound | Jaime Torrens | Sound Editor |
| Directing | Pedro L. Ramírez | Assistant Director |
| Camera | Antonio Ortas | Still Photographer |
| Costume & Make-Up | Manuel Comba | Costume Design |
| Costume & Make-Up | Francisco Puyol | Hairstylist |
| Art | Enrique Alarcón | Set Decoration |
| Camera | César Fraile | Camera Operator |
| Costume & Make-Up | Eduardo Torre de la Fuente | Costume Consultant |
| Directing | José Luis Robles | Assistant Director |
