The Duke of Osuna was a noble title in Spain, historically associated with the Osuna region in Andalusia. The title was first granted in the late 16th century and became prominent during the Spanish Golden Age. The dukes were known for their influence in politics and culture, often supporting the arts and literature. One of the most notable holders of the title was Pedro Téllez-Girón y de la Cueva, the 9th Duke of Osuna, who lived in the 17th century. He was a patron of famous artists and writers, contributing to the cultural richness of the period. The title has since passed through various noble families, reflecting Spain's complex aristocratic history.