William X, Duke of Aquitaine
E492822
William X, Duke of Aquitaine was a 12th-century French nobleman and crusader, notable as the last independent Duke of Aquitaine and father of Eleanor of Aquitaine.
All labels observed (3)
| Label | Occurrences |
|---|---|
| William X, Duke of Aquitaine canonical | 5 |
| William X of Aquitaine | 1 |
| William, Count of Poitou | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4933158 — 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: William X, Duke of Aquitaine Context triple: [Marie of France, maternalGrandfather, William X, Duke of Aquitaine]
-
A.
William I, Duke of Aquitaine
William I, Duke of Aquitaine was a powerful 10th-century French nobleman and military leader renowned for his pivotal role in monastic reform and support of the Church.
-
B.
Duke of Aquitaine
The Duke of Aquitaine was a powerful medieval noble title associated with rulership over the rich and strategically important region of Aquitaine in southwestern France, often held by English kings during the High Middle Ages.
-
C.
Peter of Dreux
Peter of Dreux was a prominent 13th-century French nobleman and military leader from the Capetian House of Dreux, known especially for his role as Duke of Brittany by marriage.
-
D.
Robert II of Dreux
Robert II of Dreux was a 12th–13th century French nobleman and crusader from the Capetian royal house who played a significant role in the politics and warfare of the Île-de-France region.
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E.
Robert I of Dreux
Robert I of Dreux was a 12th-century French nobleman and son of King Louis VI of France, who became the first holder of the County of Dreux and founded the cadet branch of the Capetian dynasty known as the House of Dreux.
- 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: William X, Duke of Aquitaine Target entity description: William X, Duke of Aquitaine was a 12th-century French nobleman and crusader, notable as the last independent Duke of Aquitaine and father of Eleanor of Aquitaine.
-
A.
William I, Duke of Aquitaine
William I, Duke of Aquitaine was a powerful 10th-century French nobleman and military leader renowned for his pivotal role in monastic reform and support of the Church.
-
B.
Duke of Aquitaine
The Duke of Aquitaine was a powerful medieval noble title associated with rulership over the rich and strategically important region of Aquitaine in southwestern France, often held by English kings during the High Middle Ages.
-
C.
Peter of Dreux
Peter of Dreux was a prominent 13th-century French nobleman and military leader from the Capetian House of Dreux, known especially for his role as Duke of Brittany by marriage.
-
D.
Robert II of Dreux
Robert II of Dreux was a 12th–13th century French nobleman and crusader from the Capetian royal house who played a significant role in the politics and warfare of the Île-de-France region.
-
E.
Robert I of Dreux
Robert I of Dreux was a 12th-century French nobleman and son of King Louis VI of France, who became the first holder of the County of Dreux and founded the cadet branch of the Capetian dynasty known as the House of Dreux.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Duke of Aquitaine
ⓘ
French noble ⓘ crusader ⓘ medieval ruler ⓘ nobleman ⓘ |
| allegiance | Duchy of Aquitaine NERFINISHED ⓘ |
| associatedWithPlace |
Aquitaine
NERFINISHED
ⓘ
Gascony NERFINISHED ⓘ Poitou NERFINISHED ⓘ |
| birthDate | 1099 ⓘ |
| burialPlace | Santiago de Compostela NERFINISHED ⓘ |
| causeOfDeath | illness during pilgrimage ⓘ |
| child |
Eleanor of Aquitaine
NERFINISHED
ⓘ
Petronilla of Aquitaine NERFINISHED ⓘ William Aigret NERFINISHED ⓘ |
| countryOfOrigin | France ⓘ |
| deathDate | 1137 ⓘ |
| deathPlace | Santiago de Compostela NERFINISHED ⓘ |
| era | 12th century ⓘ |
| father | William IX, Duke of Aquitaine NERFINISHED ⓘ |
| feudalRank | high nobility ⓘ |
| givenName | William ⓘ |
| heldTitleFrom |
Count of Poitou from 1126 to 1137
ⓘ
Duke of Aquitaine from 1126 to 1137 ⓘ |
| historicalRegionRuled | southwestern France ⓘ |
| knownFor |
patronage of the Church
ⓘ
regional leadership in southwestern France ⓘ |
| language | Old French ⓘ |
| mother | Philippa of Toulouse NERFINISHED ⓘ |
| nobleFamily | House of Poitiers NERFINISHED ⓘ |
| notableEvent | arranged the marriage prospects of Eleanor of Aquitaine shortly before his death ⓘ |
| notableFor |
being the father of Eleanor of Aquitaine
ⓘ
being the last independent Duke of Aquitaine ⓘ |
| notableWork | Participation in the Second Crusade (as a crusader leader in its early phase) ⓘ |
| ordinalNumber | X ⓘ |
| participatedIn | pilgrimage to Santiago de Compostela ⓘ |
| politicalStatus | vassal of the King of France ⓘ |
| predecessor | William IX, Duke of Aquitaine NERFINISHED ⓘ |
| reignEnd | 1137 ⓘ |
| reignStart | 1126 ⓘ |
| religion | Roman Catholicism ⓘ |
| spouse | Aenor de Châtellerault NERFINISHED ⓘ |
| successor | Eleanor of Aquitaine NERFINISHED ⓘ |
| successorAsCountOfPoitou | Eleanor of Aquitaine NERFINISHED ⓘ |
| title |
Count of Poitou
NERFINISHED
ⓘ
Duke of Aquitaine NERFINISHED ⓘ Duke of Gascony 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: William X, Duke of Aquitaine Description of subject: William X, Duke of Aquitaine was a 12th-century French nobleman and crusader, notable as the last independent Duke of Aquitaine and father of Eleanor of Aquitaine.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
William, Count of Poitou
this entity surface form:
William X of Aquitaine