The Duchess of Alba is a title held by the head of the House of Alba, a noble family in Spain. The most famous holder of this title was Cayetana Fitz-James Stuart, who was known for her extensive art collection and numerous palaces. She was one of the most prominent aristocrats in Spain and had a significant influence on Spanish culture. The Duchess of Alba is recognized for her distinctive style and vibrant personality. She was often seen in the media due to her colorful outfits and social engagements. The title has a long history, dating back to the 15th century, and is associated with various historical events and figures in Spain.