Arcturus Black
E931745
Arcturus Black is a minor but historically significant pure-blood wizard from the Harry Potter universe, known primarily as an ancestor of Sirius Black and a member of the aristocratic Black family.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Pollux Black | 4 |
| Arcturus Black canonical | 3 |
| Arcturus Black I | 1 |
| Arcturus Black III | 1 |
| Sirius Black II | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11471389 — 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: Arcturus Black Context triple: [Black family, notableMember, Arcturus Black]
-
A.
Regulus Arcturus Black
Regulus Arcturus Black is a minor yet pivotal character in the Harry Potter series, a former Slytherin and Death Eater who ultimately defies Voldemort by attempting to destroy one of his Horcruxes.
-
B.
Sirius Black
Sirius Black is a pivotal character in the Harry Potter series, known as Harry's wrongly imprisoned godfather and a member of the Order of the Phoenix.
-
C.
Phineas Nigellus Black
Phineas Nigellus Black is a former Slytherin Headmaster of Hogwarts and a portrait-bound ancestor of Sirius Black in the Harry Potter series.
-
D.
Alphard Black
Alphard Black is a minor character in the Harry Potter series, known as a member of the Black family who was disowned for leaving his fortune to his niece Nymphadora Tonks.
-
E.
Rodolphus Lestrange
Rodolphus Lestrange is a pure-blood Death Eater from the Harry Potter series, known for his loyalty to Lord Voldemort and participation in torturing Aurors like the Longbottoms.
- 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: Arcturus Black Target entity description: Arcturus Black is a minor but historically significant pure-blood wizard from the Harry Potter universe, known primarily as an ancestor of Sirius Black and a member of the aristocratic Black family.
-
A.
Regulus Arcturus Black
Regulus Arcturus Black is a minor yet pivotal character in the Harry Potter series, a former Slytherin and Death Eater who ultimately defies Voldemort by attempting to destroy one of his Horcruxes.
-
B.
Sirius Black
Sirius Black is a pivotal character in the Harry Potter series, known as Harry's wrongly imprisoned godfather and a member of the Order of the Phoenix.
-
C.
Phineas Nigellus Black
Phineas Nigellus Black is a former Slytherin Headmaster of Hogwarts and a portrait-bound ancestor of Sirius Black in the Harry Potter series.
-
D.
Alphard Black
Alphard Black is a minor character in the Harry Potter series, known as a member of the Black family who was disowned for leaving his fortune to his niece Nymphadora Tonks.
-
E.
Rodolphus Lestrange
Rodolphus Lestrange is a pure-blood Death Eater from the Harry Potter series, known for his loyalty to Lord Voldemort and participation in torturing Aurors like the Longbottoms.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf |
fictional character
ⓘ
member of the House of Black ⓘ pure-blood wizard ⓘ wizard ⓘ |
| affiliation | pure-blood aristocracy ⓘ |
| appearsIn | Harry Potter universe backstory ⓘ |
| belongsToFamily | Black family ⓘ |
| bloodStatus | pure-blood ⓘ |
| createdBy | J. K. Rowling ⓘ |
| familyName | Black ⓘ |
| familyStatus |
most ancient
ⓘ
noble ⓘ |
| gender | male ⓘ |
| hasGivenName | Arcturus ⓘ |
| hasSurname | Black ⓘ |
| historicalSignificance | ancestor in Black family lineage ⓘ |
| house | House of Black ⓘ |
| houseTrait | values blood purity ⓘ |
| ideology | pure-blood supremacy (implied) ⓘ |
| isAncestorOf | Sirius Black ⓘ |
| isOn |
Black family tapestry
ⓘ
linked to:
Black family
|
| isRelatedTo |
Orion Black
ⓘ
Regulus Black ⓘ
linked to:
Regulus Arcturus Black
Sirius Black ⓘ Walburga Black ⓘ |
| language | English ⓘ |
| mentionedIn |
Harry Potter and the Order of the Phoenix
ⓘ
The Noble and Most Ancient House of Black family tree ⓘ
linked to:
House Black
|
| nationality | British ⓘ |
| residence |
United Kingdom (implied)
ⓘ
linked to:
United Kingdom
|
| roleInCanon | minor background character ⓘ |
| setting | Wizarding World ⓘ |
| species | human ⓘ |
| universe | Harry Potter ⓘ |
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: Arcturus Black Description of subject: Arcturus Black is a minor but historically significant pure-blood wizard from the Harry Potter universe, known primarily as an ancestor of Sirius Black and a member of the aristocratic Black family.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Arcturus Black
linked to: Arcturus Black
linked to: Arcturus Black
linked to: Arcturus Black
linked to: Arcturus Black
subject linked to:
The Black family
subject linked to:
The Black family
linked to: Arcturus Black
linked to: Arcturus Black