Bertha, Duchess of Brittany
E973764
UNEXPLORED
Bertha, Duchess of Brittany was a 12th-century Breton noblewoman who ruled as Duchess in her own right and was the mother of Conan IV, Duke of Brittany.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Bertha, Duchess of Brittany canonical | 5 |
| Bertha of Blois | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11660616 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Bertha, Duchess of Brittany Context triple: [Conan IV, Duke of Brittany, mother, Bertha, Duchess of Brittany]
-
A.
Constance, Duchess of Brittany
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.
-
B.
Hawise, Duchess of Brittany
Hawise, Duchess of Brittany was an 11th-century Breton noblewoman who ruled the Duchy of Brittany in her own right and played a key role in the region’s dynastic politics.
-
C.
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.
-
D.
Matilda of Brittany
Matilda of Brittany was a 12th–13th century noblewoman, the daughter of Geoffrey II, Duke of Brittany, and a granddaughter of King Henry II of England, placing her within the Angevin royal dynasty.
-
E.
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.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Bertha, Duchess of Brittany Target entity description: Bertha, Duchess of Brittany was a 12th-century Breton noblewoman who ruled as Duchess in her own right and was the mother of Conan IV, Duke of Brittany.
-
A.
Constance, Duchess of Brittany
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.
-
B.
Hawise, Duchess of Brittany
Hawise, Duchess of Brittany was an 11th-century Breton noblewoman who ruled the Duchy of Brittany in her own right and played a key role in the region’s dynastic politics.
-
C.
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.
-
D.
Matilda of Brittany
Matilda of Brittany was a 12th–13th century noblewoman, the daughter of Geoffrey II, Duke of Brittany, and a granddaughter of King Henry II of England, placing her within the Angevin royal dynasty.
-
E.
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.
- F. None of above. chosen
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Bertha, Duchess of Brittany
linked to: Bertha, Duchess of Brittany