The Duke of Saxony was a title held by the rulers of the historical region of Saxony in Germany. This title emerged in the early Middle Ages and was associated with significant political power and territorial control. The dukes played a crucial role in the formation of the Holy Roman Empire and were influential in regional politics. Over time, the title evolved, and the territory of Saxony underwent various changes in governance. The last Duke of Saxony was Frederick Augustus III, who reigned until the end of the monarchy in Germany after World War I. Today, the legacy of the dukes is reflected in the cultural and historical significance of the region.