Hugh IV of Champagne was a nobleman who ruled as Count of Champagne from 1267 until his death in 1284. He was the son of Hugh III of Champagne and Isabelle of France, which connected him to the royal family. His reign was marked by efforts to strengthen the county's economy and maintain its independence. Hugh IV was also known for his involvement in the politics of France during a time of significant change. He supported the Capetian dynasty and was a participant in various regional conflicts, helping to shape the political landscape of medieval France.