Alan III, Duke of Brittany
E933100
Alan III, Duke of Brittany was an 11th-century Breton noble who ruled the Duchy of Brittany and played a significant role in the politics of northwestern France during the early Middle Ages.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Alan III, Duke of Brittany canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11362067 — 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: Alan III, Duke of Brittany Context triple: [House of Rennes, hasMember, Alan III, Duke of Brittany]
-
A.
Alan IV, Duke of Brittany
Alan IV, Duke of Brittany was an 11th–12th century Breton ruler known for his participation in the First Crusade and his role in consolidating ducal authority in Brittany.
-
B.
Arthur III, Duke of Brittany
Arthur III, Duke of Brittany was a 15th-century Breton nobleman and military leader who served as Constable of France and played a key role in the later stages of the Hundred Years’ War.
-
C.
John V, Duke of Brittany
John V, Duke of Brittany was a 15th-century Breton ruler who consolidated ducal authority, navigated complex alliances during the Hundred Years’ War, and fostered relative stability and prosperity in his duchy.
-
D.
Arthur II, Duke of Brittany
Arthur II, Duke of Brittany was a late 13th- and early 14th-century Breton ruler from the House of Dreux who governed the Duchy of Brittany under French suzerainty and navigated complex feudal and dynastic politics of medieval France.
-
E.
John I, Duke of Brittany
John I, Duke of Brittany was a 13th-century Breton nobleman who ruled the Duchy of Brittany and played a significant role in the politics of medieval France.
- 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: Alan III, Duke of Brittany Target entity description: Alan III, Duke of Brittany was an 11th-century Breton noble who ruled the Duchy of Brittany and played a significant role in the politics of northwestern France during the early Middle Ages.
-
A.
Alan IV, Duke of Brittany
Alan IV, Duke of Brittany was an 11th–12th century Breton ruler known for his participation in the First Crusade and his role in consolidating ducal authority in Brittany.
-
B.
Arthur III, Duke of Brittany
Arthur III, Duke of Brittany was a 15th-century Breton nobleman and military leader who served as Constable of France and played a key role in the later stages of the Hundred Years’ War.
-
C.
John V, Duke of Brittany
John V, Duke of Brittany was a 15th-century Breton ruler who consolidated ducal authority, navigated complex alliances during the Hundred Years’ War, and fostered relative stability and prosperity in his duchy.
-
D.
Arthur II, Duke of Brittany
Arthur II, Duke of Brittany was a late 13th- and early 14th-century Breton ruler from the House of Dreux who governed the Duchy of Brittany under French suzerainty and navigated complex feudal and dynastic politics of medieval France.
-
E.
John I, Duke of Brittany
John I, Duke of Brittany was a 13th-century Breton nobleman who ruled the Duchy of Brittany and played a significant role in the politics of medieval France.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Breton person
ⓘ
Duke of Brittany ⓘ medieval ruler ⓘ noble ⓘ |
| ally | Duke Richard II of Normandy NERFINISHED ⓘ |
| burialPlace | Mont-Saint-Michel NERFINISHED ⓘ |
| centuryOfBirth | 10th century ⓘ |
| centuryOfDeath | 11th century ⓘ |
| child |
Conan II, Duke of Brittany
NERFINISHED
ⓘ
Hawise, Duchess of Brittany NERFINISHED ⓘ |
| country | Duchy of Brittany NERFINISHED ⓘ |
| dateOfBirth | circa 997 ⓘ |
| dateOfDeath | 1 October 1040 ⓘ |
| deathCircumstances | died during the siege of a Norman-held town ⓘ |
| era | High Middle Ages ⓘ |
| ethnicGroup | Bretons ⓘ |
| father | Geoffrey I, Duke of Brittany NERFINISHED ⓘ |
| fullName | Alan III of Brittany NERFINISHED ⓘ |
| givenName | Alan ⓘ |
| governedTerritory |
Brittany
NERFINISHED
ⓘ
Rennes NERFINISHED ⓘ |
| historicalPeriod | 11th century ⓘ |
| language |
Breton
ⓘ
Latin ⓘ |
| maternalGrandfather | Richard I, Duke of Normandy NERFINISHED ⓘ |
| mother | Hawise of Normandy NERFINISHED ⓘ |
| motherFamily | House of Normandy NERFINISHED ⓘ |
| nobleFamily | House of Rennes NERFINISHED ⓘ |
| notableFor |
involvement in the politics of northwestern France
ⓘ
rule of the Duchy of Brittany in the early 11th century ⓘ |
| ordinal | III ⓘ |
| placeOfDeath |
Normandy
NERFINISHED
ⓘ
Vimoutiers NERFINISHED ⓘ |
| positionHeld | Duke of Brittany NERFINISHED ⓘ |
| predecessor | Geoffrey I, Duke of Brittany NERFINISHED ⓘ |
| region | northwestern France ⓘ |
| reignEnd | 1040 ⓘ |
| reignStart | 1008 ⓘ |
| relative | William the Conqueror NERFINISHED ⓘ |
| religion |
Roman Catholicism
ⓘ
surface form:
Catholicism
|
| sibling | Odo, Count of Penthièvre NERFINISHED ⓘ |
| spouse | Bertha of Blois NERFINISHED ⓘ |
| successor | Conan II, Duke of Brittany NERFINISHED ⓘ |
| suspectedCauseOfDeath | poisoning ⓘ |
| title |
Count of Rennes
NERFINISHED
ⓘ
Duke of Brittany NERFINISHED ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Alan III, Duke of Brittany Description of subject: Alan III, Duke of Brittany was an 11th-century Breton noble who ruled the Duchy of Brittany and played a significant role in the politics of northwestern France during the early Middle Ages.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.