Cassandra Mortmain
E1024631
Cassandra Mortmain is the introspective teenage narrator of Dodie Smith’s novel "I Capture the Castle," known for chronicling her eccentric family’s life in a crumbling English castle.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Cassandra Mortmain canonical | 4 |
| Topaz Mortmain | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13147603 — 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: Cassandra Mortmain Context triple: [I Capture the Castle (2003 film), hasMainCharacter, Cassandra Mortmain]
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A.
Cassandra Grey
Cassandra Grey is an American entrepreneur and beauty industry figure best known as the founder of the luxury beauty retailer Violet Grey and as the widow of Hollywood producer and former Paramount Pictures CEO Brad Grey.
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B.
Constance Blackwood
Constance Blackwood is a reclusive young woman in Shirley Jackson’s gothic novel "We Have Always Lived in the Castle," known for her quiet domesticity, protective devotion to her sister Merricat, and her role at the center of the Blackwood family’s dark mystery.
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C.
Amanda Prynne
Amanda Prynne is the witty, headstrong heroine of Noël Coward’s comedy "Private Lives," known for her volatile romance with her ex-husband Elyot.
-
D.
Magdalene Shaw
Magdalene Shaw is a sharp-witted, tough matriarch and career criminal in the Fast & Furious franchise, known as the mother of Deckard and Owen Shaw.
-
E.
Sibyl Chase
Sibyl Chase is a character in Noël Coward’s comedy play "Private Lives," known as the naïve and conventional young fiancée of Elyot Chase.
- 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: Cassandra Mortmain Target entity description: Cassandra Mortmain is the introspective teenage narrator of Dodie Smith’s novel "I Capture the Castle," known for chronicling her eccentric family’s life in a crumbling English castle.
-
A.
Cassandra Grey
Cassandra Grey is an American entrepreneur and beauty industry figure best known as the founder of the luxury beauty retailer Violet Grey and as the widow of Hollywood producer and former Paramount Pictures CEO Brad Grey.
-
B.
Constance Blackwood
Constance Blackwood is a reclusive young woman in Shirley Jackson’s gothic novel "We Have Always Lived in the Castle," known for her quiet domesticity, protective devotion to her sister Merricat, and her role at the center of the Blackwood family’s dark mystery.
-
C.
Amanda Prynne
Amanda Prynne is the witty, headstrong heroine of Noël Coward’s comedy "Private Lives," known for her volatile romance with her ex-husband Elyot.
-
D.
Magdalene Shaw
Magdalene Shaw is a sharp-witted, tough matriarch and career criminal in the Fast & Furious franchise, known as the mother of Deckard and Owen Shaw.
-
E.
Sibyl Chase
Sibyl Chase is a character in Noël Coward’s comedy play "Private Lives," known as the naïve and conventional young fiancée of Elyot Chase.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
fictional character
ⓘ
literary character ⓘ novel protagonist ⓘ teenage girl ⓘ |
| ageAtStartOfWork | 17 ⓘ |
| appearsIn | I Capture the Castle ⓘ |
| associatedWithTheme |
coming of age
ⓘ
family relationships ⓘ first love ⓘ poverty and class ⓘ |
| characterRole |
first-person narrator
ⓘ
protagonist ⓘ |
| countryOfCitizenship | United Kingdom ⓘ |
| createdBy | Dodie Smith ⓘ |
| familyName | Mortmain ⓘ |
| fictionalUniverse | I Capture the Castle ⓘ |
| firstPublicationDateOfWorkAppearedIn | 1948 ⓘ |
| gender | female ⓘ |
| genreOfWorkAppearedIn |
coming-of-age novel
ⓘ
romantic novel ⓘ |
| givenName | Cassandra ⓘ |
| hasFather | James Mortmain ⓘ |
| hasLoveInterest |
Neil Cotton
ⓘ
Simon Cotton ⓘ |
| hasSister | Rose Mortmain ⓘ |
| hasStepMother |
Topaz Mortmain
ⓘ
linked to:
Cassandra Mortmain
|
| languageOfExpression | English ⓘ |
| literaryPeriod | 20th-century literature ⓘ |
| literarySignificance | considered one of the most beloved teenage narrators in English literature ⓘ |
| medium | novel ⓘ |
| narrativeForm | diary ⓘ |
| narratorOf | I Capture the Castle ⓘ |
| notableCharacteristic |
documents her own emotional development
ⓘ
records daily life in detailed journals ⓘ |
| occupation |
diarist
ⓘ
writer ⓘ |
| personalityTrait |
imaginative
ⓘ
introspective ⓘ observant ⓘ romantic ⓘ |
| publisherOfWorkAppearedIn | William Heinemann ⓘ |
| residence |
Godsend Castle
ⓘ
crumbling castle in the English countryside ⓘ |
| settingTime | 1930s England ⓘ |
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: Cassandra Mortmain Description of subject: Cassandra Mortmain is the introspective teenage narrator of Dodie Smith’s novel "I Capture the Castle," known for chronicling her eccentric family’s life in a crumbling English castle.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.