In Spain, nobility titles are a part of the country's historical social hierarchy. The main titles include duke, marquis, count, viscount, and baron. These titles often come with specific privileges and responsibilities, and they can be hereditary or granted by the monarchy. The Spanish nobility has roots dating back to the Middle Ages, with many titles linked to land ownership and military service. Today, while the titles do not confer legal privileges, they still hold cultural significance and are often associated with historical families and traditions in Spanish society.