The Count of Champagne was the ruler of the County of Champagne from 950 to 1316. Champagne evolved from the County of Troyes in the late eleventh century and Hugh I was the first to officially use the title count of Champagne.
Count Theobald IV of Champagne inherited the Kingdom of Navarre in 1234. His great-granddaughter Joan married King Philip IV of France. Upon Joan's death in 1305, their son Louis became the last independent count of Champagne, with the title merging into the royal domain upon his accession to the French throne in 1314.
The titular counts of Champagne also inherited the post of seneschal of France.