La Vida Es Sueno, 2nd Ed. / Edition 2

This "play has been described as 'the supreme example of Spanish Golden Age drama.' The story focuses on the fictional Segismundo, Prince of Poland, who has been imprisoned in a tower by his father, King Basilio, following a dire prophecy that the prince would bring disaster to the country and death to the King. Basilio briefly frees Segismundo, but when the prince goes on a rampage, the king imprisons him again, persuading him that it was all a dream"--Wikipedia.org.