The Duchy of Zweibrücken was a historical territory located in what is now southwestern Germany. It emerged in the late Middle Ages and became a significant part of the Palatinate region. The duchy was known for its strategic location and played a role in the political dynamics of the Holy Roman Empire. Established in the 16th century, the duchy was ruled by various noble families, including the House of Wittelsbach. It experienced several territorial changes and was eventually incorporated into the Kingdom of Bavaria in the early 19th century, marking the end of its independent status.