Mathieu Dreyfus
E98595
Mathieu Dreyfus was the brother of Alfred Dreyfus and a key figure in the Dreyfus affair, known for his tireless campaign to prove Alfred’s innocence and expose the miscarriage of justice.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mathieu Dreyfus canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T736192 — 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: Mathieu Dreyfus Context triple: [Dreyfus affair, involves, Mathieu Dreyfus]
-
A.
Dominique Gisin
Dominique Gisin is a Swiss alpine ski racer best known for winning the gold medal in the women's downhill at the 2014 Winter Olympics in Sochi.
-
B.
Julien Flegenheimer
Julien Flegenheimer was an architect best known for his role in designing the Palais des Nations, the former League of Nations headquarters in Geneva.
-
C.
Dominique Horwitz
Dominique Horwitz is a German-French actor and singer known for his roles in European cinema and television, particularly in war and historical dramas.
-
D.
Jean Raoux
Jean Raoux was a French painter of the late 17th and early 18th centuries, known for his elegant genre scenes and portraits that bridged the Baroque and Rococo styles.
-
E.
Noëlle Boisson
Noëlle Boisson is a French film editor known for her work on numerous acclaimed international films, including major historical and dramatic features.
- 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: Mathieu Dreyfus Target entity description: Mathieu Dreyfus was the brother of Alfred Dreyfus and a key figure in the Dreyfus affair, known for his tireless campaign to prove Alfred’s innocence and expose the miscarriage of justice.
-
A.
Dominique Gisin
Dominique Gisin is a Swiss alpine ski racer best known for winning the gold medal in the women's downhill at the 2014 Winter Olympics in Sochi.
-
B.
Julien Flegenheimer
Julien Flegenheimer was an architect best known for his role in designing the Palais des Nations, the former League of Nations headquarters in Geneva.
-
C.
Dominique Horwitz
Dominique Horwitz is a German-French actor and singer known for his roles in European cinema and television, particularly in war and historical dramas.
-
D.
Jean Raoux
Jean Raoux was a French painter of the late 17th and early 18th centuries, known for his elegant genre scenes and portraits that bridged the Baroque and Rococo styles.
-
E.
Noëlle Boisson
Noëlle Boisson is a French film editor known for her work on numerous acclaimed international films, including major historical and dramatic features.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
French person
ⓘ
human ⓘ |
| advocatedFor | legal review of Alfred Dreyfus’s conviction ⓘ |
| cause | rehabilitation of Alfred Dreyfus ⓘ |
| countryOfBirth | France ⓘ |
| countryOfCitizenship | France ⓘ |
| ethnicGroup | French Jews ⓘ |
| familyName |
Alfred Dreyfus
ⓘ
surface form:
Dreyfus
|
| givenName | Mathieu ⓘ |
| hasOccupation |
businessman
ⓘ
political activist ⓘ |
| hasRole | key figure in the Dreyfus affair ⓘ |
| knownFor |
campaign to prove Alfred Dreyfus’s innocence
ⓘ
efforts to expose miscarriage of justice in the Dreyfus affair ⓘ |
| languageSpoken | French ⓘ |
| movement |
Dreyfus affair
ⓘ
surface form:
Dreyfusard movement
|
| notableFor | role in the Dreyfus affair ⓘ |
| notableWork | public advocacy for Alfred Dreyfus ⓘ |
| opposedTo |
antisemitism in France
ⓘ
miscarriage of justice in the French Army ⓘ |
| partOf | French Jewish community ⓘ |
| placeOfBirth | Mulhouse ⓘ |
| placeOfDeath | France ⓘ |
| positionHeld | leading Dreyfusard campaigner ⓘ |
| relative | Alfred Dreyfus ⓘ |
| religion | Judaism ⓘ |
| residence | France ⓘ |
| sexOrGender | male ⓘ |
| sibling | Alfred Dreyfus ⓘ |
| significantEvent | Dreyfus affair ⓘ |
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: Mathieu Dreyfus Description of subject: Mathieu Dreyfus was the brother of Alfred Dreyfus and a key figure in the Dreyfus affair, known for his tireless campaign to prove Alfred’s innocence and expose the miscarriage of justice.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.