The Dukes of Württemberg were rulers of the historical region of Württemberg in southwestern Germany. Their lineage began in the 10th century, and they played a significant role in the political and cultural development of the area. The title of duke was officially established in the 15th century, and the family became prominent in the Holy Roman Empire. Throughout their history, the Dukes of Württemberg were known for their contributions to the arts, education, and infrastructure. They also navigated various political changes, including the transition from a duchy to a kingdom in the 19th century, when Württemberg became the Kingdom of Württemberg.