Date Masamune
E215389
Date Masamune was a powerful and influential daimyo of Japan’s Azuchi–Momoyama and early Edo periods, famed for his military prowess, distinctive one-eyed appearance, and role in developing the Tōhoku region.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Date Masamune canonical | 53 |
| Masamune | 1 |
| One-Eyed Dragon Masamune | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1929765 — 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: Date Masamune Context triple: [Sendai, foundedBy, Date Masamune]
-
A.
Kusanagi-no-Tsurugi
Kusanagi-no-Tsurugi is a legendary Japanese sword of divine origin, revered as one of the three sacred treasures symbolizing the authority of the Emperor.
-
B.
Yamanashi Hanzō
Yamanashi Hanzō was a Japanese military officer and colonial administrator who served as Governor-General of Korea during the period of Japanese rule.
-
C.
Marui
Marui is a Japanese department store and retail company known for its fashion-focused shopping complexes branded with the "OIOI" logo.
-
D.
Masaharu
Masaharu is a Japanese masculine given name that can be written with various kanji combinations and is borne by several notable figures in Japanese history and culture.
-
E.
Fujara
The Fujara is a large, overtone-rich Slovak shepherd’s flute traditionally used in folk music and known for its deep, meditative sound.
- 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: Date Masamune Target entity description: Date Masamune was a powerful and influential daimyo of Japan’s Azuchi–Momoyama and early Edo periods, famed for his military prowess, distinctive one-eyed appearance, and role in developing the Tōhoku region.
-
A.
Kusanagi-no-Tsurugi
Kusanagi-no-Tsurugi is a legendary Japanese sword of divine origin, revered as one of the three sacred treasures symbolizing the authority of the Emperor.
-
B.
Yamanashi Hanzō
Yamanashi Hanzō was a Japanese military officer and colonial administrator who served as Governor-General of Korea during the period of Japanese rule.
-
C.
Marui
Marui is a Japanese department store and retail company known for its fashion-focused shopping complexes branded with the "OIOI" logo.
-
D.
Masaharu
Masaharu is a Japanese masculine given name that can be written with various kanji combinations and is borne by several notable figures in Japanese history and culture.
-
E.
Fujara
The Fujara is a large, overtone-rich Slovak shepherd’s flute traditionally used in folk music and known for its deep, meditative sound.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese warlord
ⓘ
daimyo ⓘ feudal lord ⓘ samurai ⓘ |
| allegiance |
Tokugawa Ieyasu
ⓘ
Toyotomi Hideyoshi ⓘ |
| birthDate | 1567-09-05 ⓘ |
| birthPlace |
Japan
ⓘ
Yonezawa, Dewa Province ⓘ
linked to:
Yonezawa, Yamagata
|
| burialPlace |
Zuihōden Mausoleum, Sendai
ⓘ
linked to:
Zuihoden Mausoleum
|
| causeOfEyeLoss | smallpox ⓘ |
| child | Date Tadamune ⓘ |
| clan | Date clan ⓘ |
| culturalDepiction |
featured in Japanese literature
ⓘ
featured in television dramas ⓘ featured in video games ⓘ |
| deathDate | 1636-06-27 ⓘ |
| deathPlace |
Japan
ⓘ
Sendai, Mutsu Province ⓘ
linked to:
Sendai, Miyagi, Japan
|
| domain | Sendai Domain ⓘ |
| era |
Azuchi–Momoyama period
ⓘ
Edo period ⓘ |
| familyName | Date ⓘ |
| father | Date Terumune ⓘ |
| founded |
Sendai Castle
ⓘ
linked to:
Sendai Castle ruins
castle town of Sendai ⓘ |
| givenName |
Masamune
ⓘ
linked to:
Date Masamune
|
| honorificTitle | One-Eyed Dragon of Ōshu ⓘ |
| knownFor |
crescent-moon helmet
ⓘ
later political prudence ⓘ ruthless tactics in youth ⓘ |
| lostEye | right eye ⓘ |
| militaryRank | daimyo ⓘ |
| mother | Yoshihime ⓘ |
| name | Date Masamune ⓘ |
| nativeName | 伊達政宗 ⓘ |
| nickname |
Dokuganryū
ⓘ
One-Eyed Dragon ⓘ
linked to:
One-Eyed Dragon of Ōshu
|
| notableFor |
development of the Tōhoku region
ⓘ
distinctive one-eyed appearance ⓘ founding of Sendai ⓘ military prowess ⓘ |
| participatedIn |
Korean invasions of 1592–1598
ⓘ
linked to:
Japanese invasions of Korea (1592–1598)
|
| regionOfRule |
Tōhoku region
ⓘ
linked to:
Tohoku
|
| religion | Buddhism ⓘ |
| sent | Keichō Embassy to Europe ⓘ |
| spouse | Megohime ⓘ |
| supported |
Christian missionaries
ⓘ
Tokugawa side at the Battle of Sekigahara ⓘ |
| title | Lord of Sendai ⓘ |
| vassal | Hasekura Tsunenaga ⓘ |
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: Date Masamune Description of subject: Date Masamune was a powerful and influential daimyo of Japan’s Azuchi–Momoyama and early Edo periods, famed for his military prowess, distinctive one-eyed appearance, and role in developing the Tōhoku region.
Referenced by (55)
Full triples — surface form annotated when it differs from this entity's canonical label.