Blanche of Artois

Blanche of Artois was a member of the Capetian House of Artois who, as queen dowager, held regency over the Kingdom of Navarre and the County of Champagne. She was queen of Navarre and countess of Champagne and Brie during her marriage to Henry I of Navarre. After his death she became regent in the name of their infant daughter, Joan I. She passed on the regency of Navarre to Philip III of France, her cousin and her daughter's prospective father-in-law, but retained the administration of Champagne. She later shared the government of Champagne with her second husband, Edmund Crouchback, until her daughter reached the age of majority.