"In 1336, Pedro, heir to the Portuguese crown, marries Constanza Manuel de Villena, a Castilian noblewoman, for political reasons; but the impulsive prince ends up giving in to his love for Inés de Castro, his wife's lady-in-waiting."
Alicia Palacios
as Inés de Castro
António Vilar
as Pedro I of Portugal
María Dolores Pradera
as Constanza Manuel de Villena
Gregorio Beorlegui
as Pero Coelho
Raul de Carvalho
as Diogo Lopes Pacheco
Antonia Plana
as Lorenza
Ramón Martori
as Fernando de Castro
Antonio Casas
as Álvaro de Castro
João Villaret
as Martim the Fool
Alfredo Ruas
as Álvaro Gonçalves
Erico Braga
as Afonso IV of Portugal
Ricardo del Mazo
as Ayres
Aníbal Vela
as Juan Manuel de Villena
Concha López Silva
as Second Maid
José Leitão de Barros
Director
Antonio Fernández Roces
Sound
Juan J. Doria
Editor
Jacques Saint-Léonard
Manuel Augusto García Viñolas
Art Direction
Screenplay
Screenstory
José Muñoz Molleda
Original Music Composer
Afonso Lopes Vieira
Novel
Heinrich Gärtner
Director of Photography
Antonio Simont
Set Decoration
Manuel Machado
Technical Advisor
Luis Dias Amado
Consulting Producer
Mario Pacheco
Camera Operator
Dialogue
Pierre Schild
Emilio Ruiz Castroviejo
Construction Manager
Octavio F. Roces
Production Director
José María Alonso Pesquera
Production Manager
Oliveira Martins
Delegated Producer
Felipe Sáez
Sound Recordist
Alfredo Carrero
Alejandro Perla
First Assistant Director
Manuel Comba
Costume Designer
Carmen Salas
Script Supervisor
Francisco Escriñá