Blanche of Artois (1248 – 2 May 1302) was the queen consort of Navarre; after her husband Henry I of Navarre's death, she served as regent from 1274 to 1284 on behalf of her daughter, Joan I. Besides Navarre, she ruled the counties of Brie, Champagne, Troyes et Meaux.
In 1276, she became Countess of Lancaster by marrying into the English royal family.
She was the daughter of Count Robert I of Artois and Matilda of Brabant.
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