Aoba Castle
E778100
Aoba Castle is a historic Japanese hilltop fortress in Sendai, Miyagi Prefecture, long associated with the Date clan and now a prominent cultural and tourist site.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Aoba Castle canonical | 3 |
| Aoba Castle site | 2 |
| Aoba-jō | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9098870 — 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: Aoba Castle Context triple: [Sendai Aoba Festival, namedAfter, Aoba Castle]
-
A.
Iga Ueno Castle
Iga Ueno Castle is a historic Japanese hilltop fortress in Iga, Mie Prefecture, renowned for its impressive stone walls and association with ninja heritage.
-
B.
Nagoya Castle
Nagoya Castle is a historic Japanese fortress in Nagoya, famous for its Edo-period architecture and iconic golden shachihoko (mythical tiger-fish) ornaments.
-
C.
Osaka Castle
Osaka Castle is a historic Japanese fortress in Osaka, renowned for its grand architecture, surrounding park, and major role in Japan’s feudal history.
-
D.
Edo Castle
Edo Castle was the vast fortified residence of the Tokugawa shoguns in Edo (now Tokyo), serving as the political and military center of Japan during the Edo period.
-
E.
Fushimi Castle
Fushimi Castle is a historic Japanese castle in Kyoto associated with Toyotomi Hideyoshi and known for its role in the late Sengoku period and early Edo period.
- 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: Aoba Castle Target entity description: Aoba Castle is a historic Japanese hilltop fortress in Sendai, Miyagi Prefecture, long associated with the Date clan and now a prominent cultural and tourist site.
-
A.
Iga Ueno Castle
Iga Ueno Castle is a historic Japanese hilltop fortress in Iga, Mie Prefecture, renowned for its impressive stone walls and association with ninja heritage.
-
B.
Nagoya Castle
Nagoya Castle is a historic Japanese fortress in Nagoya, famous for its Edo-period architecture and iconic golden shachihoko (mythical tiger-fish) ornaments.
-
C.
Osaka Castle
Osaka Castle is a historic Japanese fortress in Osaka, renowned for its grand architecture, surrounding park, and major role in Japan’s feudal history.
-
D.
Edo Castle
Edo Castle was the vast fortified residence of the Tokugawa shoguns in Edo (now Tokyo), serving as the political and military center of Japan during the Edo period.
-
E.
Fushimi Castle
Fushimi Castle is a historic Japanese castle in Kyoto associated with Toyotomi Hideyoshi and known for its role in the late Sengoku period and early Edo period.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese castle
ⓘ
hilltop castle ⓘ historical site ⓘ |
| alsoKnownAs |
Aoba-jō
ⓘ
linked to:
Aoba Castle
Sendai Castle ⓘ
linked to:
Sendai Castle ruins
|
| associatedWith | Date clan ⓘ |
| castleType |
hirayamashiro
ⓘ
linked to:
hirajiro
|
| completionDate | early 17th century ⓘ |
| constructedBy | Date Masamune ⓘ |
| constructionStartDate | 1600 ⓘ |
| country | Japan ⓘ |
| currentCondition | ruins ⓘ |
| damagedDuring |
Boshin War
ⓘ
Second World War ⓘ
linked to:
World War II
|
| designatedAs | National Historic Site of Japan ⓘ |
| governedBy |
City of Sendai
ⓘ
linked to:
Sendai
|
| hasEvent |
cultural festivals
ⓘ
historical reenactments ⓘ |
| hasFacility |
museum
ⓘ
visitor center ⓘ |
| hasFeature |
gates
ⓘ
honmaru (main bailey) ⓘ
linked to:
honmaru
moats ⓘ ninomaru (second bailey) ⓘ
linked to:
second bailey (ninomaru)
stone walls ⓘ |
| hasMonument | equestrian statue of Date Masamune ⓘ |
| hasStructure |
reconstructed gate
ⓘ
reconstructed yagura (turret) ⓘ |
| hasViewOf |
Hirose River
ⓘ
Sendai city ⓘ
linked to:
Sendai
|
| heritageStatus | protected cultural property ⓘ |
| locatedIn |
Miyagi Prefecture
ⓘ
Sendai ⓘ Tōhoku region ⓘ
linked to:
Tohoku
|
| locatedOn | Mount Aoba ⓘ |
| near | Sendai City Museum ⓘ |
| notableFor |
association with Date Masamune
ⓘ
panoramic views of Sendai ⓘ |
| openToPublic | yes ⓘ |
| originalFunction |
military fortress
ⓘ
residence of the Date clan ⓘ |
| periodOfUse | Edo period ⓘ |
| primaryMaterial |
stone
ⓘ
wood ⓘ |
| region | Honshu ⓘ |
| servedAs | seat of the Sendai Domain ⓘ |
| tourismType |
cultural tourism site
ⓘ
historical tourism site ⓘ |
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: Aoba Castle Description of subject: Aoba Castle is a historic Japanese hilltop fortress in Sendai, Miyagi Prefecture, long associated with the Date clan and now a prominent cultural and tourist site.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Aoba Castle
linked to: Aoba Castle
linked to: Aoba Castle