Princess Märtha of Sweden
E263613
Princess Märtha of Sweden was a Swedish-born royal who became Crown Princess of Norway and the mother of King Harald V, noted for her prominent role in Norwegian public life during World War II.
All labels observed (8)
How this entity was disambiguated
This entity first appeared as the object of triple T1192342 — 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 Märtha of Sweden Context triple: [Harald V of Norway, mother, Princess Märtha of Sweden]
-
A.
Queen Silvia of Sweden
Queen Silvia of Sweden is the Queen consort of King Carl XVI Gustaf, known for her extensive work in social and humanitarian causes, particularly in child welfare and dementia care.
-
B.
Hedvig Sophia of Sweden
Hedvig Sophia of Sweden was a Swedish princess and Duchess of Holstein-Gottorp, known as the eldest daughter of King Charles XI and a key dynastic link between the Swedish and Holstein-Gottorp houses.
-
C.
Louise of Sweden
Louise of Sweden was a Swedish-born princess who became Queen of Denmark as the wife of King Frederick VIII and the mother of King Haakon VII of Norway.
-
D.
Astrid of Sweden
Astrid of Sweden was a popular Swedish-born queen consort of Belgium, known for her beauty, compassion, and tragic early death in a car accident in 1935.
-
E.
Queen Sonja of Norway
Queen Sonja of Norway is the queen consort of King Harald V and a prominent member of the Norwegian royal family known for her cultural patronage and public service.
- 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 Märtha of Sweden Target entity description: Princess Märtha of Sweden was a Swedish-born royal who became Crown Princess of Norway and the mother of King Harald V, noted for her prominent role in Norwegian public life during World War II.
-
A.
Queen Silvia of Sweden
Queen Silvia of Sweden is the Queen consort of King Carl XVI Gustaf, known for her extensive work in social and humanitarian causes, particularly in child welfare and dementia care.
-
B.
Hedvig Sophia of Sweden
Hedvig Sophia of Sweden was a Swedish princess and Duchess of Holstein-Gottorp, known as the eldest daughter of King Charles XI and a key dynastic link between the Swedish and Holstein-Gottorp houses.
-
C.
Louise of Sweden
Louise of Sweden was a Swedish-born princess who became Queen of Denmark as the wife of King Frederick VIII and the mother of King Haakon VII of Norway.
-
D.
Astrid of Sweden
Astrid of Sweden was a popular Swedish-born queen consort of Belgium, known for her beauty, compassion, and tragic early death in a car accident in 1935.
-
E.
Queen Sonja of Norway
Queen Sonja of Norway is the queen consort of King Harald V and a prominent member of the Norwegian royal family known for her cultural patronage and public service.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Crown Princess of Norway
ⓘ
human ⓘ princess ⓘ |
| birthName | Princess Märtha of Sweden self-link ⓘ |
| burialPlace |
Akershus Fortress
ⓘ
surface form:
Akershus Fortress, Oslo, Norway
|
| child |
Harald V of Norway
ⓘ
surface form:
King Harald V of Norway
Princess Astrid of Norway ⓘ Princess Ragnhild of Norway ⓘ |
| closeConnection |
President Franklin D. Roosevelt
ⓘ
surface form:
Franklin D. Roosevelt
|
| countryOfCitizenship |
Norway
ⓘ
Sweden ⓘ |
| dateOfBirth | 1901-03-28 ⓘ |
| dateOfDeath | 1954-04-05 ⓘ |
| father | Prince Carl, Duke of Västergötland ⓘ |
| fullName |
Princess Märtha of Sweden
self-linksurface differs
ⓘ
surface form:
Princess Märtha Sofia Lovisa Dagmar Thyra of Sweden
|
| givenName | Märtha ⓘ |
| honorificTitle | Her Royal Highness ⓘ |
| languageSpoken |
English
ⓘ
Norwegian ⓘ Swedish ⓘ |
| mannerOfDeath | natural causes ⓘ |
| memberOf |
House of Bernadotte
ⓘ
House of Glücksburg ⓘ |
| mother | Princess Ingeborg of Denmark ⓘ |
| notableEvent |
Exile in the United States during World War II
ⓘ
Role in strengthening Norwegian–American relations during World War II ⓘ |
| notableFor | Prominent role in Norwegian public life during World War II ⓘ |
| notableWork | Norwegian war-time public diplomacy during World War II ⓘ |
| placeOfBirth |
Stockholm
ⓘ
surface form:
Stockholm, Sweden
|
| placeOfDeath |
Oslo
ⓘ
surface form:
Oslo, Norway
|
| placeOfMarriage |
Oslo Cathedral
ⓘ
surface form:
Oslo Cathedral, Oslo, Norway
|
| positionHeld |
Crown Princess Mette-Marit of Norway
ⓘ
surface form:
Crown Princess of Norway
First Lady of Norway ⓘ |
| relative |
Carl XVI Gustaf of Sweden
ⓘ
surface form:
King Carl XVI Gustaf of Sweden
Haakon VII of Norway ⓘ
surface form:
King Haakon VII of Norway
Harald V of Norway ⓘ
surface form:
King Harald V of Norway
Olav V of Norway ⓘ
surface form:
King Olav V of Norway
|
| religion | Lutheranism ⓘ |
| residence |
Oslo
ⓘ
surface form:
Oslo, Norway
Skaugum, Asker, Norway ⓘ Washington, D.C. ⓘ
surface form:
Washington, D.C., United States
|
| sexOrGender | female ⓘ |
| sibling |
Prince Carl Bernadotte
ⓘ
Princess Astrid of Norway ⓘ
surface form:
Princess Astrid of Sweden
Princess Märtha of Sweden self-linksurface differs ⓘ
surface form:
Princess Margaretha of Sweden
|
| spouse |
Olav V of Norway
ⓘ
surface form:
Crown Prince Olav of Norway
Olav V of Norway ⓘ
surface form:
King Olav V of Norway
|
| startTimeOfMarriage | 1929-03-21 ⓘ |
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 Märtha of Sweden Description of subject: Princess Märtha of Sweden was a Swedish-born royal who became Crown Princess of Norway and the mother of King Harald V, noted for her prominent role in Norwegian public life during World War II.
Referenced by (17)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Märtha of Sweden
this entity surface form:
Princess Margaretha of Sweden
this entity surface form:
Crown Princess Märtha of Norway
this entity surface form:
Crown Princess Märtha of Norway
this entity surface form:
Crown Princess Märtha of Norway
this entity surface form:
Crown Princess Märtha of Norway
subject surface form:
Skaugum
this entity surface form:
Märtha, Crown Princess of Norway
this entity surface form:
Princess Märtha Sofia Lovisa Dagmar Thyra of Sweden
this entity surface form:
Princess Margaretha of Sweden
this entity surface form:
Princess Margaretha of Sweden
this entity surface form:
Princess Astrid of Sweden
this entity surface form:
Crown Princess Margareta of Sweden