Theobald IV of Champagne was a French nobleman who ruled as Count of Champagne from 1253 until his death in 1270. He was the son of Theobald III of Champagne and Margaret of France, and he inherited the title after his father's death. Theobald IV is known for his efforts to strengthen the county's economy and for his involvement in the politics of the region. During his reign, Theobald IV supported the French monarchy and participated in various military campaigns, including the Seventh Crusade. He was also a patron of the arts and culture, contributing to the development of Gothic architecture in his territories. His leadership helped maintain the stability of Champagne during a tumultuous period in medieval France.