Dáin II Ironfoot
E778860
Dáin II Ironfoot is a Dwarf king from J.R.R. Tolkien's Middle-earth legendarium, renowned for his valor in battle and later rule over Erebor during the late Third Age.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Dáin II Ironfoot canonical | 4 |
| Dáin Ironfoot | 4 |
| Thorin III Stonehelm | 2 |
| Dain II Ironfoot | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9115622 — 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: Dáin II Ironfoot Context triple: [Lonely Mountain, ruler, Dáin II Ironfoot]
-
A.
Thráin II
Thráin II is a Dwarf of Durin's line in J.R.R. Tolkien's legendarium, known as the exiled King of Durin's Folk who lost the last of the Seven Rings of the Dwarves to Sauron.
-
B.
Baranduin
Baranduin is a major river in J.R.R. Tolkien’s Middle-earth that forms the eastern boundary of the Shire and flows southward to the sea.
-
C.
Thorin Oakenshield
Thorin Oakenshield is a proud and determined Dwarf leader from J.R.R. Tolkien’s Middle-earth legendarium, best known for leading the quest to reclaim the Lonely Mountain and its treasure from the dragon Smaug.
-
D.
Halfdan Ragnarsson
Halfdan Ragnarsson was a 9th-century Viking warlord, traditionally identified as one of the sons of Ragnar Lothbrok, who played a major role in the Norse invasions and political upheavals in England.
-
E.
Thrór
Thrór is a Dwarven king from J.R.R. Tolkien's legendarium, remembered as the last King under the Mountain before Smaug seized Erebor.
- 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: Dáin II Ironfoot Target entity description: Dáin II Ironfoot is a Dwarf king from J.R.R. Tolkien's Middle-earth legendarium, renowned for his valor in battle and later rule over Erebor during the late Third Age.
-
A.
Thráin II
Thráin II is a Dwarf of Durin's line in J.R.R. Tolkien's legendarium, known as the exiled King of Durin's Folk who lost the last of the Seven Rings of the Dwarves to Sauron.
-
B.
Baranduin
Baranduin is a major river in J.R.R. Tolkien’s Middle-earth that forms the eastern boundary of the Shire and flows southward to the sea.
-
C.
Thorin Oakenshield
Thorin Oakenshield is a proud and determined Dwarf leader from J.R.R. Tolkien’s Middle-earth legendarium, best known for leading the quest to reclaim the Lonely Mountain and its treasure from the dragon Smaug.
-
D.
Halfdan Ragnarsson
Halfdan Ragnarsson was a 9th-century Viking warlord, traditionally identified as one of the sons of Ragnar Lothbrok, who played a major role in the Norse invasions and political upheavals in England.
-
E.
Thrór
Thrór is a Dwarven king from J.R.R. Tolkien's legendarium, remembered as the last King under the Mountain before Smaug seized Erebor.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Dwarf
ⓘ
character in The Hobbit ⓘ character in The Lord of the Rings ⓘ fictional character ⓘ |
| age | Third Age NERFINISHED ⓘ |
| alias | Dáin Ironfoot NERFINISHED ⓘ |
| allegiance |
Durin's Folk
NERFINISHED
ⓘ
Free Peoples of Middle-earth NERFINISHED ⓘ |
| birthYear | Third Age 2767 ⓘ |
| causeOfDeath | Battle of Dale NERFINISHED ⓘ |
| cousin | Thorin II Oakenshield NERFINISHED ⓘ |
| creator | J. R. R. Tolkien ⓘ |
| culture | Longbeards NERFINISHED ⓘ |
| deathYear | Third Age 3019 ⓘ |
| father | Náin II NERFINISHED ⓘ |
| fictionalUniverse | Middle-earth NERFINISHED ⓘ |
| gender | male ⓘ |
| grandfather | Grór NERFINISHED ⓘ |
| house | House of Durin NERFINISHED ⓘ |
| killed | Azog NERFINISHED ⓘ |
| knownFor |
becoming King under the Mountain after the Battle of Five Armies
ⓘ
defending Erebor and Dale in the War of the Ring ⓘ leading the Dwarves of the Iron Hills ⓘ slaying Azog at Azanulbizar ⓘ valor in battle ⓘ |
| language |
Khuzdul
NERFINISHED
ⓘ
Westron NERFINISHED ⓘ |
| mannerOfDeath | killed in battle ⓘ |
| notableBattle |
Battle of Azanulbizar
NERFINISHED
ⓘ
Battle of Dale NERFINISHED ⓘ Battle of Five Armies NERFINISHED ⓘ |
| participatedIn |
War of the Dwarves and Orcs
NERFINISHED
ⓘ
War of the Ring NERFINISHED ⓘ events of The Hobbit ⓘ |
| placeOfBirth | Iron Hills NERFINISHED ⓘ |
| placeOfDeath | Erebor NERFINISHED ⓘ |
| predecessor | Thorin II Oakenshield NERFINISHED ⓘ |
| race | Dwarf ⓘ |
| realm |
Erebor
NERFINISHED
ⓘ
Iron Hills NERFINISHED ⓘ |
| reignEnd | Third Age 3019 ⓘ |
| reignStart | Third Age 2941 ⓘ |
| relative |
Thorin II Oakenshield
NERFINISHED
ⓘ
Thráin II NERFINISHED ⓘ |
| son | Thorin III Stonehelm NERFINISHED ⓘ |
| successor | Thorin III Stonehelm NERFINISHED ⓘ |
| title |
King of Durin's Folk
NERFINISHED
ⓘ
King under the Mountain NERFINISHED ⓘ Lord of the Iron Hills NERFINISHED ⓘ |
| weapon | axe ⓘ |
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: Dáin II Ironfoot Description of subject: Dáin II Ironfoot is a Dwarf king from J.R.R. Tolkien's Middle-earth legendarium, renowned for his valor in battle and later rule over Erebor during the late Third Age.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Dain II Ironfoot
this entity surface form:
Thorin III Stonehelm
this entity surface form:
Dáin Ironfoot
this entity surface form:
Dáin Ironfoot
this entity surface form:
Dáin Ironfoot
this entity surface form:
Dáin Ironfoot