Joan Mortimer
E524850
Joan Mortimer was a 14th-century English noblewoman of the powerful Mortimer family, notable primarily through her lineage as the daughter of Roger Mortimer, 1st Earl of March.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Joan Mortimer canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5492388 — 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: Joan Mortimer Context triple: [Roger Mortimer, 1st Earl of March, child, Joan Mortimer]
-
A.
Mary Stewart, Countess of Angus
Mary Stewart, Countess of Angus, was a medieval Scottish noblewoman and daughter of King Robert III of Scotland who played a role in the dynastic alliances of the Scottish royal family.
-
B.
Elizabeth Douglas, Countess of Morton
Elizabeth Douglas, Countess of Morton, was a Scottish noblewoman of the powerful Douglas family who became Countess of Morton through her marriage to James Douglas, 4th Earl of Morton, a prominent 16th-century Scottish regent.
-
C.
Margaret Mortimer
Margaret Mortimer was a medieval English noblewoman of the powerful Mortimer family, daughter of Roger Mortimer, 1st Earl of March, and a figure in the aristocratic networks surrounding the reign of Edward II and Edward III.
-
D.
Katherine Mortimer
Katherine Mortimer was a 14th-century English noblewoman, daughter of the powerful Marcher lord Roger Mortimer, 1st Earl of March, and a member of the influential Mortimer family during the reign of Edward III.
-
E.
Marjorie, Countess of Carrick
Marjorie, Countess of Carrick, was a 13th-century Scottish noblewoman best known as the mother of King Robert the Bruce and a key figure in the lineage of the Scottish royal house.
- 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: Joan Mortimer Target entity description: Joan Mortimer was a 14th-century English noblewoman of the powerful Mortimer family, notable primarily through her lineage as the daughter of Roger Mortimer, 1st Earl of March.
-
A.
Mary Stewart, Countess of Angus
Mary Stewart, Countess of Angus, was a medieval Scottish noblewoman and daughter of King Robert III of Scotland who played a role in the dynastic alliances of the Scottish royal family.
-
B.
Elizabeth Douglas, Countess of Morton
Elizabeth Douglas, Countess of Morton, was a Scottish noblewoman of the powerful Douglas family who became Countess of Morton through her marriage to James Douglas, 4th Earl of Morton, a prominent 16th-century Scottish regent.
-
C.
Margaret Mortimer
Margaret Mortimer was a medieval English noblewoman of the powerful Mortimer family, daughter of Roger Mortimer, 1st Earl of March, and a figure in the aristocratic networks surrounding the reign of Edward II and Edward III.
-
D.
Katherine Mortimer
Katherine Mortimer was a 14th-century English noblewoman, daughter of the powerful Marcher lord Roger Mortimer, 1st Earl of March, and a member of the influential Mortimer family during the reign of Edward III.
-
E.
Marjorie, Countess of Carrick
Marjorie, Countess of Carrick, was a 13th-century Scottish noblewoman best known as the mother of King Robert the Bruce and a key figure in the lineage of the Scottish royal house.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
English noblewoman
ⓘ
medieval noble ⓘ member of the Mortimer family ⓘ |
| associatedWith | Welsh Marches NERFINISHED ⓘ |
| countryOfCitizenship | Kingdom of England ⓘ |
| dynasticConnection | Mortimer family of March NERFINISHED ⓘ |
| era | Late Middle Ages ⓘ |
| ethnicGroup | English ⓘ |
| familyName | Mortimer NERFINISHED ⓘ |
| father | Roger Mortimer, 1st Earl of March NERFINISHED ⓘ |
| floruit | 14th century ⓘ |
| gender | female ⓘ |
| givenName | Joan NERFINISHED ⓘ |
| hasAncestor | Edmund Mortimer NERFINISHED ⓘ |
| hasRelative |
Edmund Mortimer, 2nd Earl of March
NERFINISHED
ⓘ
Roger Mortimer, 2nd Earl of March NERFINISHED ⓘ |
| historicalPeriod | Plantagenet era NERFINISHED ⓘ |
| languageSpoken | Middle English ⓘ |
| memberOfNobleFamily | House of Mortimer NERFINISHED ⓘ |
| nobleStatus | high nobility ⓘ |
| nobleTitle | Lady ⓘ |
| notableFor | being daughter of Roger Mortimer, 1st Earl of March ⓘ |
| politicalContext |
regency and early reign of Edward III of England
ⓘ
reign of Edward II of England ⓘ |
| region | Herefordshire NERFINISHED ⓘ |
| religion |
Roman Catholicism
ⓘ
surface form:
Catholicism
|
| residence | Kingdom of England NERFINISHED ⓘ |
| socialClass | nobility ⓘ |
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: Joan Mortimer Description of subject: Joan Mortimer was a 14th-century English noblewoman of the powerful Mortimer family, notable primarily through her lineage as the daughter of Roger Mortimer, 1st Earl of March.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.