The Duke of Pomerania was a title held by rulers in the historical region of Pomerania, located along the southern shore of the Baltic Sea. This area is now part of modern-day Poland and Germany. The title was established in the Middle Ages and was associated with various noble families, particularly the House of Griffins. Pomerania was significant for its strategic location and trade routes. The dukes played a crucial role in regional politics and alliances, often engaging in conflicts with neighboring states. The title eventually became obsolete in the 18th century as the region underwent various political changes, including the rise of Prussia and the partition of Poland.