Gwladus Ddu
E671338
Gwladus Ddu was a 13th-century Welsh noblewoman, traditionally regarded as a daughter of Llywelyn the Great and noted for her influential marital alliances within the Welsh and Marcher nobility.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Gwladus Ddu canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7534443 — 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: Gwladus Ddu Context triple: [Joan, Lady of Wales, child, Gwladus Ddu]
-
A.
Gwendraeth Fach
Gwendraeth Fach is one of the two main branches of the River Gwendraeth in Carmarthenshire, Wales, flowing through rural valleys before joining the estuarine system near the coast.
-
B.
Gwendraeth Fawr
Gwendraeth Fawr is one of the two main branches of the River Gwendraeth in Carmarthenshire, Wales, flowing through a largely rural valley before reaching the Burry estuary.
-
C.
Wethau
Wethau is a small river in central Germany that flows through Saxony-Anhalt and Thuringia before joining the Saale.
-
D.
Henllys
Henllys is a residential village and suburb forming part of the Cwmbran area in Torfaen, South Wales.
-
E.
Talygarn
Talygarn is a village and residential area in Rhondda Cynon Taf, Wales, known for its historic estate and former rehabilitation hospital.
- 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: Gwladus Ddu Target entity description: Gwladus Ddu was a 13th-century Welsh noblewoman, traditionally regarded as a daughter of Llywelyn the Great and noted for her influential marital alliances within the Welsh and Marcher nobility.
-
A.
Gwendraeth Fach
Gwendraeth Fach is one of the two main branches of the River Gwendraeth in Carmarthenshire, Wales, flowing through rural valleys before joining the estuarine system near the coast.
-
B.
Gwendraeth Fawr
Gwendraeth Fawr is one of the two main branches of the River Gwendraeth in Carmarthenshire, Wales, flowing through a largely rural valley before reaching the Burry estuary.
-
C.
Wethau
Wethau is a small river in central Germany that flows through Saxony-Anhalt and Thuringia before joining the Saale.
-
D.
Henllys
Henllys is a residential village and suburb forming part of the Cwmbran area in Torfaen, South Wales.
-
E.
Talygarn
Talygarn is a village and residential area in Rhondda Cynon Taf, Wales, known for its historic estate and former rehabilitation hospital.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
Welsh noblewoman
ⓘ
historical figure ⓘ medieval noble ⓘ |
| associatedWithRegion |
Gwynedd
NERFINISHED
ⓘ
Marcher lordships ⓘ Powys NERFINISHED ⓘ |
| countryOfCitizenship | Wales NERFINISHED ⓘ |
| describedBySource | Welsh genealogical tradition ⓘ |
| ethnicity | Welsh ⓘ |
| father | Llywelyn the Great NERFINISHED ⓘ |
| floruit | 13th century ⓘ |
| gender | female ⓘ |
| historicalStatus | traditionally regarded as daughter of Llywelyn the Great ⓘ |
| languageOfName | Welsh ⓘ |
| maritalAllianceWith |
House of Braose
NERFINISHED
ⓘ
Mortimer family NERFINISHED ⓘ |
| nameMeaning | Gwladus the Black NERFINISHED ⓘ |
| nativeLanguage | Welsh language ⓘ |
| nobleFamily | House of Aberffraw NERFINISHED ⓘ |
| notableFor |
connection between Welsh princes and Marcher lords
ⓘ
marital alliances with Welsh and Marcher nobility ⓘ |
| parent | Llywelyn the Great NERFINISHED ⓘ |
| partOf | Welsh nobility NERFINISHED ⓘ |
| positionInSociety | member of Welsh princely house ⓘ |
| recordedIn | medieval Welsh pedigrees ⓘ |
| relative |
Dafydd ap Llywelyn
NERFINISHED
ⓘ
Gruffudd ap Llywelyn NERFINISHED ⓘ |
| spouse |
Ralph de Mortimer
NERFINISHED
ⓘ
Reginald de Braose NERFINISHED ⓘ |
| timePeriod | High Middle Ages 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: Gwladus Ddu Description of subject: Gwladus Ddu was a 13th-century Welsh noblewoman, traditionally regarded as a daughter of Llywelyn the Great and noted for her influential marital alliances within the Welsh and Marcher nobility.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.