Constance, Duchess of Brittany

Target entity: Constance, Duchess of Brittany
Context triple: [Prince Arthur, Duke of Brittany, mother, Constance, Duchess of Brittany]

• A. Blanche of Brittany
  Blanche of Brittany was a 13th-century French noblewoman of the ducal house of Brittany, notable for her Plantagenet royal connections through her mother Beatrice of England.
• B. Duchess of Brittany
  The Duchess of Brittany was the consort or female ruler associated with the historic Duchy of Brittany in medieval France, often playing a key role in regional politics and dynastic alliances.
• C. Eleanor of Brittany
  Eleanor of Brittany was a 13th-century English princess and daughter of King Henry III and Eleanor of Provence, known for her brief betrothal to Simon de Montfort’s son and her life largely spent in religious devotion.
• D. Marie of Brittany
  Marie of Brittany was a 13th-century French noblewoman, daughter of John II, Duke of Brittany, and Beatrice of England, and a granddaughter of King Henry III of England.
• E. Mary of Waltham, Duchess of Brittany
  Mary of Waltham, Duchess of Brittany, was a 14th-century English princess, daughter of King Edward III, who became duchess through her marriage to John IV, Duke of Brittany.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Constance, Duchess of Brittany
Target entity description: Constance, Duchess of Brittany, was a 12th-century Breton noblewoman and heiress whose turbulent marriages and political struggles significantly shaped the succession disputes between England and Brittany.

• A. Blanche of Brittany
  Blanche of Brittany was a 13th-century French noblewoman of the ducal house of Brittany, notable for her Plantagenet royal connections through her mother Beatrice of England.
• B. Duchess of Brittany
  The Duchess of Brittany was the consort or female ruler associated with the historic Duchy of Brittany in medieval France, often playing a key role in regional politics and dynastic alliances.
• C. Eleanor of Brittany
  Eleanor of Brittany was a 13th-century English princess and daughter of King Henry III and Eleanor of Provence, known for her brief betrothal to Simon de Montfort’s son and her life largely spent in religious devotion.
• D. Marie of Brittany
  Marie of Brittany was a 13th-century French noblewoman, daughter of John II, Duke of Brittany, and Beatrice of England, and a granddaughter of King Henry III of England.
• E. Mary of Waltham, Duchess of Brittany
  Mary of Waltham, Duchess of Brittany, was a 14th-century English princess, daughter of King Edward III, who became duchess through her marriage to John IV, Duke of Brittany.
• F. None of above. chosen