Fumihito, Crown Prince Akishino
E15171
Fumihito, Crown Prince Akishino, is the younger brother and heir presumptive to Emperor Naruhito of Japan and a senior member of the Japanese imperial family.
All labels observed (9)
| Label | Occurrences |
|---|---|
| Fumihito, Crown Prince Akishino canonical | 16 |
| Fumihito, Crown Prince of Japan | 11 |
| Crown Prince Fumihito | 4 |
| 秋篠宮文仁親王 | 4 |
| Crown Prince of Japan | 3 |
| Crown Prince Akishino | 2 |
| Fumihito, Prince Akishino | 2 |
| Crown Prince Fumihito family | 1 |
| Prince Akishino | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T51538 — 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: Fumihito, Crown Prince Akishino Context triple: [Naruhito, sibling, Fumihito, Crown Prince Akishino]
-
A.
Naruhito
Naruhito is the Emperor of Japan and the symbolic head of state of the country.
-
B.
Akihito
Akihito is the former Emperor of Japan who abdicated in 2019, ending the Heisei era and becoming the first Japanese monarch to step down in over two centuries.
-
C.
Empress Masako
Empress Masako is the current Empress of Japan, a Harvard-educated former diplomat known for her international background and marriage to Emperor Naruhito.
-
D.
Emperor Hirohito
Emperor Hirohito was the Shōwa-era emperor of Japan who reigned during World War II and oversaw the country’s militarist expansion, defeat, and subsequent postwar reconstruction.
-
E.
Yamamoto
Yamamoto is a Japanese surname most famously associated with Admiral Isoroku Yamamoto, the commander-in-chief of the Imperial Japanese Navy during World War II.
- 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: Fumihito, Crown Prince Akishino Target entity description: Fumihito, Crown Prince Akishino, is the younger brother and heir presumptive to Emperor Naruhito of Japan and a senior member of the Japanese imperial family.
-
A.
Naruhito
Naruhito is the Emperor of Japan and the symbolic head of state of the country.
-
B.
Akihito
Akihito is the former Emperor of Japan who abdicated in 2019, ending the Heisei era and becoming the first Japanese monarch to step down in over two centuries.
-
C.
Empress Masako
Empress Masako is the current Empress of Japan, a Harvard-educated former diplomat known for her international background and marriage to Emperor Naruhito.
-
D.
Emperor Hirohito
Emperor Hirohito was the Shōwa-era emperor of Japan who reigned during World War II and oversaw the country’s militarist expansion, defeat, and subsequent postwar reconstruction.
-
E.
Yamamoto
Yamamoto is a Japanese surname most famously associated with Admiral Isoroku Yamamoto, the commander-in-chief of the Imperial Japanese Navy during World War II.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Crown Prince of Japan
ⓘ
heir presumptive ⓘ member of the Japanese imperial family ⓘ prince of Japan ⓘ |
| allegiance | Japan ⓘ |
| associatedWith | Chrysanthemum Throne ⓘ |
| birthDate | 1965-11-30 ⓘ |
| birthPlace |
Japan
ⓘ
Tokyo ⓘ |
| child |
Prince Hisahito
ⓘ
Princess Kako ⓘ Princess Mako ⓘ |
| countryOfCitizenship | Japan ⓘ |
| dynasty | Imperial House of Japan ⓘ |
| education | Gakushuin University ⓘ |
| ethnicity | Japanese ⓘ |
| father |
Akihito
ⓘ
surface form:
Emperor Emeritus Akihito
|
| fieldOfStudy |
law
ⓘ
political science ⓘ |
| gender | male ⓘ |
| givenName | Fumihito ⓘ |
| honorificTitle |
Her Imperial Highness
ⓘ
surface form:
His Imperial Highness
|
| house | Yamato ⓘ |
| interest |
environmental conservation
ⓘ
ichthyology ⓘ ornithology ⓘ |
| languageSpoken | Japanese ⓘ |
| marriageDate | 1990-06-29 ⓘ |
| memberOf | Imperial House of Japan ⓘ |
| mother |
Empress Michiko
ⓘ
surface form:
Empress Emerita Michiko
|
| notableFor |
being first in line to the Chrysanthemum Throne
ⓘ
being younger brother of Emperor Naruhito ⓘ |
| parentOfHeir | Prince Hisahito ⓘ |
| positionHeld |
Fumihito, Crown Prince Akishino
self-linksurface differs
ⓘ
surface form:
Crown Prince of Japan
Honorary President of the World Wide Fund for Nature Japan ⓘ President of the Japan Association of Zoos and Aquariums ⓘ heir presumptive to the Chrysanthemum Throne ⓘ |
| religion | Shinto ⓘ |
| residence |
Akasaka Estate, Tokyo
ⓘ
surface form:
Akasaka Estate
|
| sibling |
Naruhito
ⓘ
surface form:
Emperor Naruhito
Sayako Kuroda ⓘ |
| spouse | Kiko, Crown Princess Akishino ⓘ |
| styleOfAddress | His Imperial Highness The Crown Prince ⓘ |
| successorStatus | first in line to the Japanese throne ⓘ |
| title |
Fumihito, Crown Prince Akishino
self-linksurface differs
ⓘ
surface form:
Crown Prince Akishino
Fumihito, Crown Prince Akishino self-linksurface differs ⓘ
surface form:
Prince Akishino
|
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: Fumihito, Crown Prince Akishino Description of subject: Fumihito, Crown Prince Akishino, is the younger brother and heir presumptive to Emperor Naruhito of Japan and a senior member of the Japanese imperial family.
Referenced by (44)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Emperor of Japan
this entity surface form:
Fumihito, Crown Prince of Japan
this entity surface form:
Crown Prince of Japan
Fumihito, Crown Prince Akishino
→
positionHeld
→
Fumihito, Crown Prince Akishino
self-linksurface differs
ⓘ
this entity surface form:
Crown Prince of Japan
Fumihito, Crown Prince Akishino
→
title
→
Fumihito, Crown Prince Akishino
self-linksurface differs
ⓘ
this entity surface form:
Prince Akishino
Fumihito, Crown Prince Akishino
→
title
→
Fumihito, Crown Prince Akishino
self-linksurface differs
ⓘ
this entity surface form:
Crown Prince Akishino
this entity surface form:
Crown Prince of Japan
this entity surface form:
Fumihito, Crown Prince of Japan
this entity surface form:
Fumihito, Crown Prince of Japan
this entity surface form:
Fumihito, Crown Prince of Japan
subject surface form:
Akasaka Estate
this entity surface form:
Crown Prince Fumihito
subject surface form:
Akasaka Estate
this entity surface form:
Crown Prince Fumihito family
this entity surface form:
Fumihito, Prince Akishino
this entity surface form:
Crown Prince Fumihito
subject surface form:
Prince Hisahito of Akishino
subject surface form:
Prince Hisahito of Akishino
this entity surface form:
Crown Prince Akishino
this entity surface form:
Fumihito, Crown Prince of Japan
subject surface form:
Masahito, Prince Hitachi
this entity surface form:
Crown Prince Fumihito
this entity surface form:
Crown Prince Fumihito
this entity surface form:
Fumihito, Crown Prince of Japan
this entity surface form:
Fumihito, Crown Prince of Japan
subject surface form:
小室眞子
this entity surface form:
秋篠宮文仁親王
subject surface form:
Mako Komuro
this entity surface form:
Fumihito, Crown Prince of Japan
this entity surface form:
Fumihito, Crown Prince of Japan
this entity surface form:
Fumihito, Crown Prince of Japan
this entity surface form:
Fumihito, Crown Prince of Japan
this entity surface form:
Fumihito, Prince Akishino