A virtuous Spanish princess becomes queen of Portugal, and soon is affected by the social struggles and the reckless fight to power between the king's faction and that of his son's.

Maruchi Fresno
Isabel of Aragón

António Vilar
Dinis, King of Portugal

Luis Peña
Nuño de Lara

Fernando Rey
Infante Alfonso

José Nieto
Vasco Peres, the alderman

María Martín
Blanca

Juan Espantaleón
Pedro, the priest

Fernando Fernández de Córdoba
Pedro III de Aragón

María Asquerino
Leonor

Virgílio Teixeira
Alfonso Sánchez

Milagros Leal
Doña Betaza

Gabriel Algara
Juan Velho

Barreto Poeira
Álvaro, the squire
Julieta Castelo
Doña María Ximénez

Carmen Sánchez
Doña Constanza