Margaret de Fiennes
E524159
Margaret de Fiennes was an English noblewoman of French descent from the prominent de Fiennes family, best known as the wife of Edmund Mortimer and ancestress of the powerful Mortimer dynasty.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Maud de Fiennes | 2 |
| Margaret de Fiennes canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5492378 — 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: Margaret de Fiennes Context triple: [Roger Mortimer, 1st Earl of March, mother, Margaret de Fiennes]
-
A.
Mary de Bohun
Mary de Bohun was an English noblewoman and first wife of King Henry IV of England, and the mother of King Henry V.
-
B.
Marie de Coucy
Marie de Coucy was a 13th-century French noblewoman who became Queen Consort of Scotland through her marriage to King Alexander II.
-
C.
Beatrice, Countess of Montfort
Beatrice, Countess of Montfort was a 13th-century French noblewoman who held the title of Countess of Montfort-l'Amaury and was a member of the influential Dreux family.
-
D.
Countess of Montfort
The Countess of Montfort refers to Mary of Waltham, an English-born noblewoman of the 14th century who became Duchess of Brittany through marriage.
-
E.
Margaret Stewart, Duchess of Touraine
Margaret Stewart, Duchess of Touraine, was a late 14th- to early 15th-century Scottish princess, daughter of King Robert III of Scotland, who became Duchess of Touraine through her marriage into the French nobility during the Hundred Years’ War.
- 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: Margaret de Fiennes Target entity description: Margaret de Fiennes was an English noblewoman of French descent from the prominent de Fiennes family, best known as the wife of Edmund Mortimer and ancestress of the powerful Mortimer dynasty.
-
A.
Mary de Bohun
Mary de Bohun was an English noblewoman and first wife of King Henry IV of England, and the mother of King Henry V.
-
B.
Marie de Coucy
Marie de Coucy was a 13th-century French noblewoman who became Queen Consort of Scotland through her marriage to King Alexander II.
-
C.
Beatrice, Countess of Montfort
Beatrice, Countess of Montfort was a 13th-century French noblewoman who held the title of Countess of Montfort-l'Amaury and was a member of the influential Dreux family.
-
D.
Countess of Montfort
The Countess of Montfort refers to Mary of Waltham, an English-born noblewoman of the 14th century who became Duchess of Brittany through marriage.
-
E.
Margaret Stewart, Duchess of Touraine
Margaret Stewart, Duchess of Touraine, was a late 14th- to early 15th-century Scottish princess, daughter of King Robert III of Scotland, who became Duchess of Touraine through her marriage into the French nobility during the Hundred Years’ War.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
English noble
ⓘ
noblewoman ⓘ |
| ancestorOf | Mortimer dynasty NERFINISHED ⓘ |
| countryOfCitizenship | Kingdom of England ⓘ |
| ethnicOrigin | French ⓘ |
| father | Guillaume II de Fiennes NERFINISHED ⓘ |
| floruit |
early 14th century
ⓘ
late 13th century ⓘ |
| granddaughterOf | Jean de Brienne, King of Jerusalem NERFINISHED ⓘ |
| languageSpoken | Anglo-Norman French ⓘ |
| marriedInto | Mortimer family NERFINISHED ⓘ |
| memberOf | de Fiennes family NERFINISHED ⓘ |
| mother | Blanche de Brienne NERFINISHED ⓘ |
| motherOf | Roger Mortimer, 1st Earl of March NERFINISHED ⓘ |
| nobleFamilyOrigin | Flanders NERFINISHED ⓘ |
| nobleTitle | Baroness Mortimer NERFINISHED ⓘ |
| notableFamily | Mortimer family NERFINISHED ⓘ |
| notableFor |
being ancestress of the powerful Mortimer dynasty
ⓘ
being wife of Edmund Mortimer, 2nd Baron Mortimer ⓘ |
| parent | Margaret de Fiennes NERFINISHED ⓘ |
| religion | Roman Catholicism ⓘ |
| sibling |
Jean de Fiennes
NERFINISHED
ⓘ
Robert de Fiennes NERFINISHED ⓘ |
| socialClass | high nobility ⓘ |
| spouse |
Edmund Mortimer, 2nd Baron Mortimer
NERFINISHED
ⓘ
Margaret de Fiennes 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: Margaret de Fiennes Description of subject: Margaret de Fiennes was an English noblewoman of French descent from the prominent de Fiennes family, best known as the wife of Edmund Mortimer and ancestress of the powerful Mortimer dynasty.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Maud de Fiennes
this entity surface form:
Maud de Fiennes