House of Mortimer
E524163
The House of Mortimer was a powerful medieval Anglo-Norman noble family that rose to prominence on the Welsh Marches and played a major role in English politics, especially during the 13th and 14th centuries.
All labels observed (3)
| Label | Occurrences |
|---|---|
| House of Mortimer canonical | 2 |
| de Mortimer family | 1 |
| the Mortimer family | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5492390 — 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: House of Mortimer Context triple: [Roger Mortimer, 1st Earl of March, house, House of Mortimer]
-
A.
House of Neville
The House of Neville was a powerful medieval English noble family that played a central role in the politics and conflicts of the 14th and 15th centuries, especially during the Wars of the Roses.
-
B.
House of Fitzalan
The House of Fitzalan was a prominent medieval English noble family best known as the long-standing Earls of Arundel and influential magnates in the politics of the English crown.
-
C.
House of Stanley
The House of Stanley was a powerful English noble family from Lancashire that rose to prominence in the late Middle Ages and played a decisive role in the Wars of the Roses and the early Tudor period.
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D.
Mortimer
Mortimer is a village and civil parish in West Berkshire, England, known for its rural character and commuter links to nearby Reading.
-
E.
Mortimer
Mortimer is a masculine given name of Old French origin, historically associated with English nobility and later borne by various notable figures in philosophy, literature, and the arts.
- 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: House of Mortimer Target entity description: The House of Mortimer was a powerful medieval Anglo-Norman noble family that rose to prominence on the Welsh Marches and played a major role in English politics, especially during the 13th and 14th centuries.
-
A.
House of Neville
The House of Neville was a powerful medieval English noble family that played a central role in the politics and conflicts of the 14th and 15th centuries, especially during the Wars of the Roses.
-
B.
House of Fitzalan
The House of Fitzalan was a prominent medieval English noble family best known as the long-standing Earls of Arundel and influential magnates in the politics of the English crown.
-
C.
House of Stanley
The House of Stanley was a powerful English noble family from Lancashire that rose to prominence in the late Middle Ages and played a decisive role in the Wars of the Roses and the early Tudor period.
-
D.
Mortimer
Mortimer is a village and civil parish in West Berkshire, England, known for its rural character and commuter links to nearby Reading.
-
E.
Mortimer
Mortimer is a masculine given name of Old French origin, historically associated with English nobility and later borne by various notable figures in philosophy, literature, and the arts.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
medieval dynasty
ⓘ
noble family ⓘ |
| activePeriod |
13th century
ⓘ
14th century ⓘ |
| alliedWith | House of Plantagenet NERFINISHED ⓘ |
| coatOfArms | Barry or and azure, on a chief of the first two pallets between two gyrons azure, over all an inescutcheon argent ⓘ |
| country | Kingdom of England ⓘ |
| declinePeriod | late 14th century ⓘ |
| ethnicity | Anglo-Norman ⓘ |
| extinctionOfMainLine | 15th century ⓘ |
| feudalStatus | Marcher lordship ⓘ |
| hasAncestralSeat | Wigmore, Herefordshire NERFINISHED ⓘ |
| hasMember |
Edmund Mortimer, 2nd Baron Mortimer
NERFINISHED
ⓘ
Edmund Mortimer, 3rd Earl of March NERFINISHED ⓘ Edmund Mortimer, 5th Earl of March NERFINISHED ⓘ Ralph de Mortimer NERFINISHED ⓘ Roger Mortimer, 1st Baron Mortimer NERFINISHED ⓘ Roger Mortimer, 1st Earl of March NERFINISHED ⓘ Roger Mortimer, 4th Earl of March NERFINISHED ⓘ |
| hasSeat |
Ludlow Castle
NERFINISHED
ⓘ
Wigmore Castle NERFINISHED ⓘ |
| hasTitle |
Earls of March
NERFINISHED
ⓘ
Marcher lords NERFINISHED ⓘ |
| heldFeudalBarony | Barony of Wigmore NERFINISHED ⓘ |
| heldOffice |
Justiciar of Wales
ⓘ
Lord Lieutenant of Ireland NERFINISHED ⓘ |
| influencedSuccession | claim of the House of York to the English throne ⓘ |
| inheritedBy | House of York NERFINISHED ⓘ |
| languageOfFamily |
Anglo-Norman French
NERFINISHED
ⓘ
Middle English ⓘ |
| notableEvent |
Roger Mortimer, 1st Earl of March, de facto ruler of England 1327–1330
NERFINISHED
ⓘ
execution of Roger Mortimer, 1st Earl of March, in 1330 ⓘ |
| notableFor |
influence in English politics
ⓘ
power in the Welsh Marches ⓘ |
| opposedMonarch | Edward II of England NERFINISHED ⓘ |
| originatesFrom | Normandy NERFINISHED ⓘ |
| participatedIn |
Despenser War
NERFINISHED
ⓘ
Invasion of England in 1326 NERFINISHED ⓘ Second Barons' War NERFINISHED ⓘ Wars of Scottish Independence NERFINISHED ⓘ Welsh Marches conflicts ⓘ |
| powerPeak | reign of Edward II of England ⓘ |
| region | Welsh Marches NERFINISHED ⓘ |
| relatedByMarriageTo | House of York NERFINISHED ⓘ |
| religion | Roman Catholicism ⓘ |
| supportedMonarch |
Edward I of England
NERFINISHED
ⓘ
Edward III of England NERFINISHED ⓘ |
| territorialHoldings |
Herefordshire
NERFINISHED
ⓘ
Shropshire NERFINISHED ⓘ borderlands of Wales ⓘ |
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: House of Mortimer Description of subject: The House of Mortimer was a powerful medieval Anglo-Norman noble family that rose to prominence on the Welsh Marches and played a major role in English politics, especially during the 13th and 14th centuries.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
the Mortimer family
this entity surface form:
de Mortimer family