Roger Mortimer, 4th Earl of March
E1119264
UNEXPLORED
Roger Mortimer, 4th Earl of March was a prominent late 14th-century English nobleman and heir presumptive to King Richard II, whose lineage played a key role in the Yorkist claim to the English throne.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Roger Mortimer, 4th Earl of March canonical | 2 |
| Roger Mortimer (brother of Anne Mortimer) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T14764777 — 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: Roger Mortimer, 4th Earl of March Context triple: [Anne Mortimer, father, Roger Mortimer, 4th Earl of March]
-
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.
Roger Mortimer of Wigmore
Roger Mortimer of Wigmore was a powerful 13th–14th century English Marcher lord and military commander, notable as the father of Roger Mortimer, 1st Earl of March, and a key figure in the politics of the Welsh borderlands.
-
C.
Humphrey Stafford, Duke of Buckingham
Humphrey Stafford, Duke of Buckingham, was a powerful 15th-century English nobleman and military leader who played a prominent role in the early stages of the Wars of the Roses.
-
D.
Edmund Mortimer, 2nd Baron Mortimer
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.
-
E.
William Douglas, 2nd Earl of March
William Douglas, 2nd Earl of March, was an 18th-century Scottish nobleman and politician from the influential Douglas family, whose titles and estates later passed to his son, the 4th Duke of Queensberry.
- 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: Roger Mortimer, 4th Earl of March Target entity description: Roger Mortimer, 4th Earl of March was a prominent late 14th-century English nobleman and heir presumptive to King Richard II, whose lineage played a key role in the Yorkist claim to the English throne.
-
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.
Roger Mortimer of Wigmore
Roger Mortimer of Wigmore was a powerful 13th–14th century English Marcher lord and military commander, notable as the father of Roger Mortimer, 1st Earl of March, and a key figure in the politics of the Welsh borderlands.
-
C.
Humphrey Stafford, Duke of Buckingham
Humphrey Stafford, Duke of Buckingham, was a powerful 15th-century English nobleman and military leader who played a prominent role in the early stages of the Wars of the Roses.
-
D.
Edmund Mortimer, 2nd Baron Mortimer
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.
-
E.
William Douglas, 2nd Earl of March
William Douglas, 2nd Earl of March, was an 18th-century Scottish nobleman and politician from the influential Douglas family, whose titles and estates later passed to his son, the 4th Duke of Queensberry.
- F. None of above. chosen
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Roger Mortimer (brother of Anne Mortimer)