Duke Conan II of Brittany was a notable medieval ruler who reigned from 1066 to 1084. He was the son of Duke Hoel of Brittany and played a significant role in the political landscape of Brittany, a region in northwestern France. His reign was marked by efforts to strengthen the duchy and maintain its independence from external influences. Conan II is often remembered for his alliances and conflicts with neighboring territories, particularly with the Normans and the Kingdom of England. His leadership helped to shape the future of Brittany, and he is considered an important figure in the history of the region during the early Middle Ages.