Blanche of Navarre was Countess of Champagne by marriage to Theobald III, Count of Champagne, and regent of Champagne during the minority of her son Theobald I of Navarre between 1201 and 1222. Wikipedia
Born: 1177, Navarre, Spain
Died: March 13, 1229 (age 52 years), Moslins, France
Grandchildren: Theobald II of Navarre, Henry I of Navarre, Blanche of Navarre, Duchess of Brittany, and more
Children: Theobald I of Navarre
Spouse: Theobald III, Count of Champagne (m. 1199–1201)
Parents: Sancho VI of Navarre and Sancha of Castile, Queen of Navarre
Great-grandparents: Urraca of León, Ramiro Sánchez, Ramon Berenguer III, Count of Barcelona, and more