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.
- Genre: Drama, History, Romance
- Studio: Faro, Filmes Lumiar
- Keyword: based on novel or book, forbidden love, period drama, assassination plan, portuguese history, spanish history, 14th century, coimbra, portugal
- Cast: Alicia Palacios, António Vilar, María Dolores Pradera, Gregorio Beorlegui, Raul de Carvalho, Antonia Plana