The Duchy of Opole was a historical principality located in present-day southern Poland. It emerged in the 13th century as part of the Silesian Piasts and was centered around the city of Opole. The duchy played a significant role in the regional politics of Silesia and was known for its cultural and economic contributions. Throughout its history, the Duchy of Opole experienced various territorial changes and was often influenced by neighboring powers. It was eventually incorporated into the Kingdom of Poland in the late 15th century, marking the end of its independence as a duchy.