Reginald de Dunstanville, 1st Earl of Cornwall
E722544
Reginald de Dunstanville, 1st Earl of Cornwall, was a 12th-century Anglo-Norman nobleman and illegitimate son of King Henry I of England who became a prominent regional magnate and royal supporter during the civil war known as The Anarchy.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Reginald de Dunstanville, 1st Earl of Cornwall canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8146612 — 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: Reginald de Dunstanville, 1st Earl of Cornwall Context triple: [Earl of Cornwall, notableHolder, Reginald de Dunstanville, 1st Earl of Cornwall]
-
A.
Richard, 1st Earl of Cornwall
Richard, 1st Earl of Cornwall was a 13th-century English prince, wealthy magnate, and elected King of the Romans who played a significant role in European politics during the reigns of his brother Henry III and beyond.
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B.
Edmund, 2nd Earl of Cornwall
Edmund, 2nd Earl of Cornwall was a 13th-century English nobleman and influential landowner who served under King Edward I and was known for his wealth, piety, and patronage of religious institutions.
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C.
Edward de Bohun
Edward de Bohun was an early 14th-century English nobleman of the influential de Bohun family, notable as a grandson of King Edward I through his mother, Elizabeth of Rhuddlan.
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D.
Charles de Courtenay
Charles de Courtenay was a French nobleman of the medieval House of Courtenay, a cadet branch historically linked to the Capetian dynasty.
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E.
Richard Marshal, 3rd Earl of Pembroke
Richard Marshal, 3rd Earl of Pembroke, was a prominent 13th-century Anglo-Norman nobleman and military leader who became one of the most powerful magnates in England and Ireland and famously rebelled against King Henry III.
- 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: Reginald de Dunstanville, 1st Earl of Cornwall Target entity description: Reginald de Dunstanville, 1st Earl of Cornwall, was a 12th-century Anglo-Norman nobleman and illegitimate son of King Henry I of England who became a prominent regional magnate and royal supporter during the civil war known as The Anarchy.
-
A.
Richard, 1st Earl of Cornwall
Richard, 1st Earl of Cornwall was a 13th-century English prince, wealthy magnate, and elected King of the Romans who played a significant role in European politics during the reigns of his brother Henry III and beyond.
-
B.
Edmund, 2nd Earl of Cornwall
Edmund, 2nd Earl of Cornwall was a 13th-century English nobleman and influential landowner who served under King Edward I and was known for his wealth, piety, and patronage of religious institutions.
-
C.
Edward de Bohun
Edward de Bohun was an early 14th-century English nobleman of the influential de Bohun family, notable as a grandson of King Edward I through his mother, Elizabeth of Rhuddlan.
-
D.
Charles de Courtenay
Charles de Courtenay was a French nobleman of the medieval House of Courtenay, a cadet branch historically linked to the Capetian dynasty.
-
E.
Richard Marshal, 3rd Earl of Pembroke
Richard Marshal, 3rd Earl of Pembroke, was a prominent 13th-century Anglo-Norman nobleman and military leader who became one of the most powerful magnates in England and Ireland and famously rebelled against King Henry III.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Anglo-Norman nobleman
ⓘ
earl ⓘ illegitimate royal offspring ⓘ nobleman ⓘ |
| allegiance | Angevin dynasty NERFINISHED ⓘ |
| alsoKnownAs |
Rainald de Dunstanville
NERFINISHED
ⓘ
Reginald Fitz Henry NERFINISHED ⓘ Reginald fitzRoy NERFINISHED ⓘ |
| appointedBy | Empress Matilda NERFINISHED ⓘ |
| birthDate | circa 1110 ⓘ |
| burialPlace | Reading Abbey NERFINISHED ⓘ |
| countryOfCitizenship | Kingdom of England ⓘ |
| deathDate | 1 July 1175 ⓘ |
| deathPlace | Chertsey, Surrey, England NERFINISHED ⓘ |
| era | 12th century ⓘ |
| ethnicGroup | Norman NERFINISHED ⓘ |
| father | Henry I of England NERFINISHED ⓘ |
| givenName | Reginald NERFINISHED ⓘ |
| governedRegion |
Cornwall
NERFINISHED
ⓘ
parts of Devon ⓘ parts of Somerset ⓘ |
| heldOffice | sheriff in the West Country (various shires) ⓘ |
| heldTitleFrom | circa 1141 ⓘ |
| heldTitleUntil | 1175 ⓘ |
| illegitimacyStatus | acknowledged illegitimate son of Henry I of England ⓘ |
| language |
Anglo-Norman French
NERFINISHED
ⓘ
Latin ⓘ |
| loyalty |
Empress Matilda
NERFINISHED
ⓘ
Henry II of England NERFINISHED ⓘ |
| militaryConflict | The Anarchy NERFINISHED ⓘ |
| mother | Sybil Corbet NERFINISHED ⓘ |
| nobleFamily | House of Normandy NERFINISHED ⓘ |
| nobleTitle | Earl of Cornwall NERFINISHED ⓘ |
| notableFor |
consolidating royal authority in the southwest of England
ⓘ
supporting the Angevin cause against King Stephen ⓘ |
| ordinalOfTitle | 1st Earl of Cornwall NERFINISHED ⓘ |
| religion | Roman Catholicism ⓘ |
| role |
regional magnate in Cornwall
ⓘ
royal supporter during The Anarchy ⓘ |
| sibling |
Maud FitzRoy, Duchess of Brittany
NERFINISHED
ⓘ
Robert, 1st Earl of Gloucester NERFINISHED ⓘ William de Tracy NERFINISHED ⓘ |
| spouse |
Mabel FitzRichard
NERFINISHED
ⓘ
Mabel de Redvers NERFINISHED ⓘ |
| stepfather | Hervey de Stafford NERFINISHED ⓘ |
| successor | Earl of Cornwall title reverted to the Crown after his death ⓘ |
| supportedClaimant | Empress Matilda in the English succession crisis ⓘ |
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: Reginald de Dunstanville, 1st Earl of Cornwall Description of subject: Reginald de Dunstanville, 1st Earl of Cornwall, was a 12th-century Anglo-Norman nobleman and illegitimate son of King Henry I of England who became a prominent regional magnate and royal supporter during the civil war known as The Anarchy.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.