Spain unified in 1469 through the marriage of Ferdinand II of Aragon and Isabella I of Castile, laying the foundations for its conquests and Golden Age. In the 1500s, Spain began extracting gold from the New World, established the Spanish Inquisition, and defeated the Ottoman navy at Lepanto. The Spanish Golden Age of theater then began in the late 1500s, sparked by playwrights like Lope de Vega and Cervantes, before declining in the 1600s due to wars and the death of key figures like Cervantes and Calderon de la Barca.