Edmund Mortimer, 2nd Baron Mortimer
E524643
Edmund Mortimer, 2nd Baron Mortimer, was a prominent 13th-century English nobleman and Marcher lord who expanded the Mortimer family’s power along the Welsh border through military service and strategic alliances.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Edmund Mortimer | 1 |
| Edmund Mortimer, 2nd Baron Mortimer canonical | 1 |
| Edmund Mortimer, 2nd Earl of March | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5492377 — 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.
Target entity: Edmund Mortimer, 2nd Baron Mortimer Context triple: [Roger Mortimer, 1st Earl of March, father, Edmund Mortimer, 2nd Baron Mortimer]
-
A.
Roger Mortimer, 1st Earl of March
Roger Mortimer, 1st Earl of March, was a powerful 14th-century English nobleman who led the rebellion against King Edward II and effectively ruled England during the early reign of Edward III before being overthrown and executed.
-
B.
Baron Mortimer of Wigmore
Baron Mortimer of Wigmore was a prominent medieval English baronial title held by the powerful Mortimer family, whose members played key roles in the politics and conflicts of the Welsh Marches and the English crown.
-
C.
Thomas, 2nd Earl of Lancaster
Thomas, 2nd Earl of Lancaster was a powerful English nobleman and cousin to King Edward II who led baronial opposition to the king and was eventually executed for his role in the rebellion.
-
D.
Richard Marshal, 3rd Earl of Pembroke
Richard Marshal, 3rd Earl of Pembroke, was a prominent 13th-century Anglo-Norman nobleman and military leader who became one of the most powerful magnates in England and Ireland and famously rebelled against King Henry III.
-
E.
William de Valence, 1st Earl of Pembroke
William de Valence, 1st Earl of Pembroke, was a prominent 13th-century Anglo-French nobleman and half-brother of King Henry III who became a powerful marcher lord in Wales and a key figure in the politics of medieval England.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Edmund Mortimer, 2nd Baron Mortimer Target entity description: Edmund Mortimer, 2nd Baron Mortimer, was a prominent 13th-century English nobleman and Marcher lord who expanded the Mortimer family’s power along the Welsh border through military service and strategic alliances.
-
A.
Roger Mortimer, 1st Earl of March
Roger Mortimer, 1st Earl of March, was a powerful 14th-century English nobleman who led the rebellion against King Edward II and effectively ruled England during the early reign of Edward III before being overthrown and executed.
-
B.
Baron Mortimer of Wigmore
Baron Mortimer of Wigmore was a prominent medieval English baronial title held by the powerful Mortimer family, whose members played key roles in the politics and conflicts of the Welsh Marches and the English crown.
-
C.
Thomas, 2nd Earl of Lancaster
Thomas, 2nd Earl of Lancaster was a powerful English nobleman and cousin to King Edward II who led baronial opposition to the king and was eventually executed for his role in the rebellion.
-
D.
Richard Marshal, 3rd Earl of Pembroke
Richard Marshal, 3rd Earl of Pembroke, was a prominent 13th-century Anglo-Norman nobleman and military leader who became one of the most powerful magnates in England and Ireland and famously rebelled against King Henry III.
-
E.
William de Valence, 1st Earl of Pembroke
William de Valence, 1st Earl of Pembroke, was a prominent 13th-century Anglo-French nobleman and half-brother of King Henry III who became a powerful marcher lord in Wales and a key figure in the politics of medieval England.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
English nobleman
ⓘ
Marcher lord ⓘ baron ⓘ medieval soldier ⓘ |
| activity |
forging strategic marriage alliances
ⓘ
military service to the English crown ⓘ |
| allegiance | English crown ⓘ |
| birthPlace | Wigmore, Herefordshire NERFINISHED ⓘ |
| child |
Hugh Mortimer
NERFINISHED
ⓘ
Isabella Mortimer NERFINISHED ⓘ Maud Mortimer NERFINISHED ⓘ Roger Mortimer, 1st Earl of March NERFINISHED ⓘ |
| countryOfCitizenship | Kingdom of England ⓘ |
| deathPlace | Wigmore, Herefordshire NERFINISHED ⓘ |
| era | 13th century ⓘ |
| familyName | Mortimer NERFINISHED ⓘ |
| father | Roger Mortimer, 1st Baron Mortimer NERFINISHED ⓘ |
| feudalStatus | tenant-in-chief of the king ⓘ |
| givenName | Edmund NERFINISHED ⓘ |
| knownFor |
border warfare against the Welsh
ⓘ
strengthening Mortimer family power ⓘ |
| language |
Anglo-Norman French
NERFINISHED
ⓘ
Middle English ⓘ |
| mainResidence | Wigmore Castle NERFINISHED ⓘ |
| memberOf | House of Mortimer NERFINISHED ⓘ |
| militaryBranch | feudal levy of the Marches ⓘ |
| mother | Maud de Braose NERFINISHED ⓘ |
| nobleFamily | Mortimer family NERFINISHED ⓘ |
| nobleTitle | Baron Mortimer NERFINISHED ⓘ |
| notableRole | Marcher lord on the Welsh border ⓘ |
| notableWork | expansion of Mortimer influence in the Welsh Marches ⓘ |
| ordinalInTitle | 2 ⓘ |
| politicalFunction | local governance in the Marches ⓘ |
| positionHeld | Lord of Wigmore NERFINISHED ⓘ |
| region | Welsh Marches NERFINISHED ⓘ |
| religion |
Roman Catholicism
ⓘ
surface form:
Catholic Church
|
| socialClass | high nobility ⓘ |
| spouse | Margaret de Fiennes NERFINISHED ⓘ |
| strategicImportance | defence of the Anglo-Welsh frontier ⓘ |
| territorialControl |
lands along the Welsh border
ⓘ
lordship of Wigmore ⓘ |
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.
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.
Subject: Edmund Mortimer, 2nd Baron Mortimer Description of subject: Edmund Mortimer, 2nd Baron Mortimer, was a prominent 13th-century English nobleman and Marcher lord who expanded the Mortimer family’s power along the Welsh border through military service and strategic alliances.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.