Blancheof Brittany (1271–1327) was a daughter of John II, Duke of Brittany, and his wife Beatrice of England. [1 ] She is also known as Blanche de Dreux.
Blancheof Castile (Spanish: Blanca de Castilla; French: Blanche de Castille; 4 March 1188 – 27 November 1252) was Queen of France by marriage to Louis VIII.
Blancheof Navarre (c. 1177–1229) 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. [1 ]
Blancheof Artois (Basque: Blanka; c. 1248 – 2 May 1302) was Queen of Navarre and Countess of Champagne and Brie during her marriage to Henry I of Navarre.