Minamoto no Sanetomo
E450499
Minamoto no Sanetomo was the third shogun of Japan’s Kamakura shogunate, known for his role as a politically constrained military ruler and as a distinguished waka poet.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Minamoto no Sanetomo canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T4497357 — 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: Minamoto no Sanetomo Context triple: [Minamoto no Yoritomo, child, Minamoto no Sanetomo]
-
A.
Taira no Kiyomori
Taira no Kiyomori was a powerful 12th-century Japanese warlord and head of the Taira clan who briefly established samurai dominance over the imperial court, setting the stage for the rise of military rule in Japan.
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B.
Minamoto no Tameyoshi
Minamoto no Tameyoshi was a late Heian-period samurai leader and head of the Minamoto clan, known for his role in early conflicts that foreshadowed the rise of samurai rule in Japan.
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C.
Minamoto no Yoritomo
Minamoto no Yoritomo was the founder and first shogun of Japan’s Kamakura shogunate, establishing the country’s first military government in the late 12th century.
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D.
Taira no Munemori
Taira no Munemori was a late Heian-period Japanese military leader and head of the Taira clan who commanded its forces during the Genpei War against the Minamoto.
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E.
Minamoto no Yoriie
Minamoto no Yoriie was the second shogun of Japan’s Kamakura shogunate and the eldest son and successor of its founder, Minamoto no Yoritomo.
- 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: Minamoto no Sanetomo Target entity description: Minamoto no Sanetomo was the third shogun of Japan’s Kamakura shogunate, known for his role as a politically constrained military ruler and as a distinguished waka poet.
-
A.
Taira no Kiyomori
Taira no Kiyomori was a powerful 12th-century Japanese warlord and head of the Taira clan who briefly established samurai dominance over the imperial court, setting the stage for the rise of military rule in Japan.
-
B.
Minamoto no Tameyoshi
Minamoto no Tameyoshi was a late Heian-period samurai leader and head of the Minamoto clan, known for his role in early conflicts that foreshadowed the rise of samurai rule in Japan.
-
C.
Minamoto no Yoritomo
Minamoto no Yoritomo was the founder and first shogun of Japan’s Kamakura shogunate, establishing the country’s first military government in the late 12th century.
-
D.
Taira no Munemori
Taira no Munemori was a late Heian-period Japanese military leader and head of the Taira clan who commanded its forces during the Genpei War against the Minamoto.
-
E.
Minamoto no Yoriie
Minamoto no Yoriie was the second shogun of Japan’s Kamakura shogunate and the eldest son and successor of its founder, Minamoto no Yoritomo.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese poet
ⓘ
Kamakura-period person ⓘ human ⓘ shogun ⓘ waka poet ⓘ |
| associatedWith |
Hōjō clan
NERFINISHED
ⓘ
Tsurugaoka Hachimangū NERFINISHED ⓘ |
| birthDate | 1192-09-17 ⓘ |
| birthPlace | Kamakura NERFINISHED ⓘ |
| burialPlace | Tsurugaoka Hachimangū NERFINISHED ⓘ |
| causeOfDeath | assassination ⓘ |
| chronologicallyFollows | Minamoto no Yoriie as shogun ⓘ |
| chronologicallyPrecedes | Kujō Yoritsune as shogun ⓘ |
| countryOfCitizenship | Japan ⓘ |
| deathDate | 1219-02-13 ⓘ |
| deathPlace |
Kamakura
NERFINISHED
ⓘ
Tsurugaoka Hachimangū NERFINISHED ⓘ |
| dynasty | Kamakura shogunate NERFINISHED ⓘ |
| educatedAt | Kamakura court circle NERFINISHED ⓘ |
| era | Kamakura period NERFINISHED ⓘ |
| familyName | Minamoto NERFINISHED ⓘ |
| father | Minamoto no Yoriie NERFINISHED ⓘ |
| gender | male ⓘ |
| genre | waka ⓘ |
| givenName | Sanetomo NERFINISHED ⓘ |
| grandfather | Minamoto no Yoritomo NERFINISHED ⓘ |
| killedBy | Kugyō NERFINISHED ⓘ |
| languageOfWorkOrName | Japanese ⓘ |
| memberOf |
Minamoto clan
NERFINISHED
ⓘ
Seiwa Genji NERFINISHED ⓘ |
| mother |
Hōjō Masako
NERFINISHED
ⓘ
Hōjō no Masako NERFINISHED ⓘ |
| nativeName | 源実朝 NERFINISHED ⓘ |
| notableFor |
being the third shogun of the Kamakura shogunate
ⓘ
waka poetry ⓘ |
| notableWork | Kinkai Wakashū NERFINISHED ⓘ |
| patronOf | literature ⓘ |
| politicalStatus | politically constrained military ruler ⓘ |
| positionHeld |
shogun of the Kamakura shogunate
ⓘ
third shogun of the Kamakura shogunate ⓘ |
| predecessor | Minamoto no Yoriie NERFINISHED ⓘ |
| reignEnd | 1219 ⓘ |
| reignStart | 1203 ⓘ |
| religion | Buddhism ⓘ |
| residence | Kamakura NERFINISHED ⓘ |
| style | court poetry ⓘ |
| successor | Kujō Yoritsune NERFINISHED ⓘ |
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: Minamoto no Sanetomo Description of subject: Minamoto no Sanetomo was the third shogun of Japan’s Kamakura shogunate, known for his role as a politically constrained military ruler and as a distinguished waka poet.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.