Pedro Calderón de la Barca was a Spanish playwright and poet who lived during the Golden Age of Spanish literature. He is best known for his dramatic works, particularly his plays, which often explored themes of honor, love, and the human condition. Calderón's writing is characterized by its rich language, complex characters, and exploration of philosophical and moral dilemmas. His most famous works include "Life Is a Dream" and "The Mayor of Zalamea." Calderón's contributions to Spanish literature have had a lasting impact and continue to be studied and performed around the world.