Katherine Mortimer
E524302
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Katherine Mortimer canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5492385 — 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: Katherine Mortimer Context triple: [Roger Mortimer, 1st Earl of March, child, Katherine Mortimer]
-
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.
Catherine Busby
Catherine Busby was the wife of James Busby, the British Resident in New Zealand often called the "father" of the Treaty of Waitangi.
-
C.
Mary of Woodstock
Mary of Woodstock was an English princess, daughter of King Edward I, who became a nun at Amesbury Priory and was known for her prominent royal and religious status in the late 13th and early 14th centuries.
-
D.
Elizabeth de Clare
Elizabeth de Clare was a 14th-century English noblewoman and wealthy heiress whose endowment helped found and shape Clare College at the University of Cambridge.
-
E.
Isabel de Beaumont
Isabel de Beaumont was a 14th-century English noblewoman who became Duchess of Lancaster through her marriage to Henry of Grosmont, one of the most powerful magnates of Edward III’s reign.
- 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: Katherine Mortimer Target entity description: 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.
-
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.
Catherine Busby
Catherine Busby was the wife of James Busby, the British Resident in New Zealand often called the "father" of the Treaty of Waitangi.
-
C.
Mary of Woodstock
Mary of Woodstock was an English princess, daughter of King Edward I, who became a nun at Amesbury Priory and was known for her prominent royal and religious status in the late 13th and early 14th centuries.
-
D.
Elizabeth de Clare
Elizabeth de Clare was a 14th-century English noblewoman and wealthy heiress whose endowment helped found and shape Clare College at the University of Cambridge.
-
E.
Isabel de Beaumont
Isabel de Beaumont was a 14th-century English noblewoman who became Duchess of Lancaster through her marriage to Henry of Grosmont, one of the most powerful magnates of Edward III’s reign.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
English noblewoman
ⓘ
medieval noble ⓘ |
| activeDuring | reign of Edward III of England ⓘ |
| associatedWith |
Marcher lords
ⓘ
political influence of the Mortimer family in 14th-century England ⓘ |
| countryOfCitizenship | Kingdom of England ⓘ |
| ethnicGroup | English ⓘ |
| familyName | Mortimer NERFINISHED ⓘ |
| father | Roger Mortimer, 1st Earl of March NERFINISHED ⓘ |
| givenName | Katherine NERFINISHED ⓘ |
| hasAncestralTerritory | Welsh Marches NERFINISHED ⓘ |
| languageSpoken | Middle English ⓘ |
| livedIn | Kingdom of England NERFINISHED ⓘ |
| memberOf | Mortimer family NERFINISHED ⓘ |
| nobleFamily | House of Mortimer NERFINISHED ⓘ |
| notableFamilyConnection |
daughter of a powerful Marcher lord
ⓘ
member of an influential Marcher dynasty ⓘ |
| partOf | English medieval aristocracy ⓘ |
| religion |
Roman Catholicism
ⓘ
surface form:
Catholic Church
|
| sexOrGender | female ⓘ |
| sibling |
Agnes Mortimer
NERFINISHED
ⓘ
Beatrice Mortimer NERFINISHED ⓘ Blanche Mortimer NERFINISHED ⓘ Edmund Mortimer, 1st Earl of March NERFINISHED ⓘ Geoffrey Mortimer NERFINISHED ⓘ Margaret Mortimer, Baroness Berkeley NERFINISHED ⓘ Roger Mortimer of Chirk (younger) NERFINISHED ⓘ |
| socialRank | nobility ⓘ |
| timePeriod | 14th century ⓘ |
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: Katherine Mortimer Description of subject: 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.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.