About the work
Verse drama by Pedro Calderón de la Barca, written in 1634/35 and premiered in 1635 at the royal court in Madrid; first printed in 1636. It is considered a central work of Spanish Baroque theatre.
Plot
King Basilio of Poland has kept his son Segismundo imprisoned in a tower from childhood because a reading of the stars warned he would become a tyrant. To test the prophecy, he has the drugged prince brought to court; when Segismundo acts violently, he is returned to his cell and told it was all a dream. A later uprising frees him, and, chastened by his experience, Segismundo proves a wise ruler and forgives his father.
Cultural significance
The play explores the tension between free will and predestination and questions what separates dream from reality. It left a lasting mark on German literature, inspiring Grillparzer's Der Traum ein Leben (1840) and Hofmannsthal's Der Turm, and it remains widely performed internationally.