Princess Cecilie of Greece and Denmark
E444300
Princess Cecilie of Greece and Denmark was a Greek and Danish princess and Grand Duchess of Hesse by marriage, known for her tragic death in a 1937 plane crash along with her family.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Princess Cecilie of Greece and Denmark canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T4333567 — 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: Princess Cecilie of Greece and Denmark Context triple: [Prince Andrew of Greece and Denmark, child, Princess Cecilie of Greece and Denmark]
-
A.
Princess Maria of Greece and Denmark
Princess Maria of Greece and Denmark was a Greek and Danish royal princess, daughter of King George I of Greece, who became Grand Duchess Maria Georgievna of Russia through her marriage into the Russian imperial family.
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B.
Princess Irene of Greece and Denmark
Princess Irene of Greece and Denmark is a Greek royal, the younger sister of Queen Sofía of Spain and daughter of King Paul and Queen Frederica of Greece.
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C.
Princess Helen of Greece and Denmark
Princess Helen of Greece and Denmark was a Greek and Danish royal princess who became Queen Mother of Romania as the wife of King Carol II and mother of King Michael I.
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D.
Princess Sophia of Greece and Denmark
Princess Sophia of Greece and Denmark is the former Queen of Spain, wife of King Juan Carlos I, and mother of King Felipe VI.
-
E.
Princess Margarita of Greece and Denmark
Princess Margarita of Greece and Denmark was the eldest daughter of Prince Andrew of Greece and Denmark and Princess Alice of Battenberg, and the elder sister of Prince Philip, Duke of Edinburgh.
- 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: Princess Cecilie of Greece and Denmark Target entity description: Princess Cecilie of Greece and Denmark was a Greek and Danish princess and Grand Duchess of Hesse by marriage, known for her tragic death in a 1937 plane crash along with her family.
-
A.
Princess Maria of Greece and Denmark
Princess Maria of Greece and Denmark was a Greek and Danish royal princess, daughter of King George I of Greece, who became Grand Duchess Maria Georgievna of Russia through her marriage into the Russian imperial family.
-
B.
Princess Irene of Greece and Denmark
Princess Irene of Greece and Denmark is a Greek royal, the younger sister of Queen Sofía of Spain and daughter of King Paul and Queen Frederica of Greece.
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C.
Princess Helen of Greece and Denmark
Princess Helen of Greece and Denmark was a Greek and Danish royal princess who became Queen Mother of Romania as the wife of King Carol II and mother of King Michael I.
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D.
Princess Sophia of Greece and Denmark
Princess Sophia of Greece and Denmark is the former Queen of Spain, wife of King Juan Carlos I, and mother of King Felipe VI.
-
E.
Princess Margarita of Greece and Denmark
Princess Margarita of Greece and Denmark was the eldest daughter of Prince Andrew of Greece and Denmark and Princess Alice of Battenberg, and the elder sister of Prince Philip, Duke of Edinburgh.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Danish royalty
ⓘ
Grand Duchess of Hesse ⓘ Greek royalty ⓘ human ⓘ princess ⓘ |
| aunt | Princess Louise of Battenberg NERFINISHED ⓘ |
| birthCountry | Kingdom of Greece NERFINISHED ⓘ |
| birthDate | 1911-06-22 ⓘ |
| birthPlace |
Tatoi Palace
NERFINISHED
ⓘ
near Athens ⓘ |
| burialPlace | Rosenhöhe, Darmstadt NERFINISHED ⓘ |
| causeOfDeath | aviation accident ⓘ |
| child |
Prince Alexander of Hesse and by Rhine
NERFINISHED
ⓘ
Prince Ludwig of Hesse and by Rhine NERFINISHED ⓘ Princess Johanna of Hesse and by Rhine NERFINISHED ⓘ |
| countryOfCitizenship |
Kingdom of Denmark
NERFINISHED
ⓘ
Kingdom of Greece NERFINISHED ⓘ |
| deathDate | 1937-11-16 ⓘ |
| deathPlace |
Kingdom of Belgium
NERFINISHED
ⓘ
near Ostend ⓘ |
| era | 20th century ⓘ |
| father | Prince Andrew of Greece and Denmark NERFINISHED ⓘ |
| fullName | Cecilie of Greece and Denmark NERFINISHED ⓘ |
| givenName | Cecilie NERFINISHED ⓘ |
| grandfather | George I of Greece NERFINISHED ⓘ |
| grandmother | Olga Constantinovna of Russia NERFINISHED ⓘ |
| languageSpoken |
English
ⓘ
German ⓘ Greek ⓘ |
| mannerOfDeath | plane crash ⓘ |
| marriageDate | 1931-02-02 ⓘ |
| marriagePlace | Darmstadt NERFINISHED ⓘ |
| mother | Princess Alice of Battenberg NERFINISHED ⓘ |
| notableEvent | died in 1937 plane crash with husband and children ⓘ |
| notableFor |
death in 1937 Sabena airliner crash near Ostend
ⓘ
member of Greek and Danish royal families ⓘ sister of Prince Philip, Duke of Edinburgh ⓘ |
| positionHeld | Grand Duchess of Hesse and by Rhine NERFINISHED ⓘ |
| religion | Greek Orthodox Church NERFINISHED ⓘ |
| royalHouse | House of Glücksburg NERFINISHED ⓘ |
| sibling |
Prince Philip, Duke of Edinburgh
NERFINISHED
ⓘ
Princess Margarita of Greece and Denmark NERFINISHED ⓘ Princess Sophie of Greece and Denmark NERFINISHED ⓘ Princess Theodora of Greece and Denmark NERFINISHED ⓘ |
| spouse | Georg Donatus, Hereditary Grand Duke of Hesse NERFINISHED ⓘ |
| spouseTitle | Hereditary Grand Duke of Hesse and by Rhine NERFINISHED ⓘ |
| title |
Hereditary Grand Duchess of Hesse and by Rhine
NERFINISHED
ⓘ
Princess of Greece and Denmark NERFINISHED ⓘ |
| uncle | Louis Mountbatten, 1st Earl Mountbatten of Burma NERFINISHED ⓘ |
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: Princess Cecilie of Greece and Denmark Description of subject: Princess Cecilie of Greece and Denmark was a Greek and Danish princess and Grand Duchess of Hesse by marriage, known for her tragic death in a 1937 plane crash along with her family.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.