William II of Namur was a nobleman who ruled as the Count of Namur from 1331 until his death in 1391. He was a member of the House of Dampierre and played a significant role in the political landscape of medieval Belgium. His reign was marked by efforts to strengthen the county's independence and influence. During his rule, William II engaged in various military campaigns and alliances, notably with the Duchy of Brabant and the County of Hainaut. He was known for his diplomatic skills and sought to maintain peace in the region while navigating the complexities of feudal politics.