Sebastian of Portugal
E76193
Sebastian of Portugal was the young and zealous 16th-century king whose disastrous 1578 crusading campaign in Morocco led to his death and a dynastic crisis that precipitated the Iberian Union under Spanish rule.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Sebastian of Portugal canonical | 9 |
| King Sebastian of Portugal | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T599734 — 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: Sebastian of Portugal Context triple: [Portuguese Empire, monarch, Sebastian of Portugal]
-
A.
John II of Portugal
John II of Portugal was the 15th-century king who consolidated royal power at home and advanced Portuguese maritime exploration, helping to lay the foundations of Portugal’s overseas empire.
-
B.
King John III of Portugal
King John III of Portugal was a 16th-century Portuguese monarch whose reign oversaw the height of Portugal’s overseas empire and major exploratory and colonial ventures.
-
C.
John I of Portugal
John I of Portugal was the founder of the Aviz dynasty and king whose reign marked the beginning of Portugal’s overseas expansion and the rise of the Portuguese Empire.
-
D.
King Manuel I of Portugal
King Manuel I of Portugal was the monarch who oversaw the beginning of Portugal’s global maritime empire, including sponsoring Vasco da Gama’s pioneering sea voyage to India.
-
E.
Philip III of Portugal
Philip III of Portugal was the Habsburg king who ruled over Spain and Portugal in the early 17th century during the period of the Iberian Union.
- 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: Sebastian of Portugal Target entity description: Sebastian of Portugal was the young and zealous 16th-century king whose disastrous 1578 crusading campaign in Morocco led to his death and a dynastic crisis that precipitated the Iberian Union under Spanish rule.
-
A.
John II of Portugal
John II of Portugal was the 15th-century king who consolidated royal power at home and advanced Portuguese maritime exploration, helping to lay the foundations of Portugal’s overseas empire.
-
B.
King John III of Portugal
King John III of Portugal was a 16th-century Portuguese monarch whose reign oversaw the height of Portugal’s overseas empire and major exploratory and colonial ventures.
-
C.
John I of Portugal
John I of Portugal was the founder of the Aviz dynasty and king whose reign marked the beginning of Portugal’s overseas expansion and the rise of the Portuguese Empire.
-
D.
King Manuel I of Portugal
King Manuel I of Portugal was the monarch who oversaw the beginning of Portugal’s global maritime empire, including sponsoring Vasco da Gama’s pioneering sea voyage to India.
-
E.
Philip III of Portugal
Philip III of Portugal was the Habsburg king who ruled over Spain and Portugal in the early 17th century during the period of the Iberian Union.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
King of Portugal
ⓘ
Roman Catholic ⓘ human ⓘ monarch ⓘ |
| ageAtAccession | 3 ⓘ |
| ageAtDeath | 24 ⓘ |
| aimOfCampaign |
crusade against Muslim forces in Morocco
ⓘ
support for claimant Muley Mohammed to the Moroccan throne ⓘ |
| associatedMovement | Sebastianism ⓘ |
| birthDate | 1554-01-20 ⓘ |
| birthPlace |
Kingdom of Portugal
ⓘ
Lisbon ⓘ |
| causeOfDeath |
Battle of Alcácer Quibir
ⓘ
killed in battle ⓘ |
| child | none ⓘ |
| coronationDate | 1568-01-20 ⓘ |
| countryOfCitizenship | Kingdom of Portugal ⓘ |
| deathDate | 1578-08-04 ⓘ |
| deathPlace |
Battle of Alcácer Quibir
ⓘ
Morocco ⓘ near Ksar el-Kebir ⓘ |
| dynasty | Aviz dynasty ⓘ |
| era | 16th century ⓘ |
| father | John Manuel, Prince of Portugal ⓘ |
| fullName |
Sebastian I of Portugal
ⓘ
surface form:
Sebastião I de Portugal
Sebastian I of Portugal ⓘ
surface form:
Sebastião I, Rei de Portugal
|
| givenName | Sebastian ⓘ |
| grandfather |
King John III of Portugal
ⓘ
surface form:
John III of Portugal
|
| grandmother | Catherine of Austria, Queen of Portugal ⓘ |
| historicalConsequence |
Iberian Union
ⓘ
personal union of Portugal and Spain under Philip II of Spain ⓘ |
| house | House of Aviz ⓘ |
| knownFor | mystique of Sebastianism ⓘ |
| maritalStatus | never married ⓘ |
| militaryConflict |
Battle of Alcácer Quibir
ⓘ
Portuguese–Marinid conflicts ⓘ
surface form:
Moroccan campaign of 1578
|
| mother | Joanna of Austria ⓘ |
| nativeName |
Sebastian I of Portugal
ⓘ
surface form:
Sebastião I de Portugal
|
| notableEvent | Battle of Alcácer Quibir ⓘ |
| notableWork | 1578 Moroccan campaign ⓘ |
| positionHeld |
Kings of Portugal
ⓘ
surface form:
King of Portugal
|
| predecessor |
King John III of Portugal
ⓘ
surface form:
John III of Portugal
|
| regency |
Cardinal Henry of Portugal served as regent
ⓘ
Catherine of Austria served as regent ⓘ |
| reignEnd | 1578-08-04 ⓘ |
| reignStart | 1557-06-11 ⓘ |
| religion |
Roman Catholicism
ⓘ
surface form:
Catholic Church
|
| resultOfDeath |
Portuguese succession crisis of 1580
ⓘ
surface form:
Portuguese dynastic crisis
succession crisis in Portugal ⓘ |
| succeededBy |
Iberian Union under Spanish rule
ⓘ
Philip II of Spain ⓘ
surface form:
Philip II of Spain (as Philip I of Portugal)
|
| successor | Henry of Portugal ⓘ |
| title |
Kings of Portugal
ⓘ
surface form:
His Most Faithful Majesty the King of Portugal and the Algarves
|
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: Sebastian of Portugal Description of subject: Sebastian of Portugal was the young and zealous 16th-century king whose disastrous 1578 crusading campaign in Morocco led to his death and a dynastic crisis that precipitated the Iberian Union under Spanish rule.
Referenced by (14)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
King Sebastian of Portugal
subject surface form:
John III of Portugal
this entity surface form:
King Sebastian of Portugal
subject surface form:
Regency of Cardinal Henry of Portugal
this entity surface form:
King Sebastian of Portugal
subject surface form:
Regency of Cardinal Henry of Portugal
this entity surface form:
King Sebastian of Portugal
subject surface form:
Regency of Cardinal Henry of Portugal
this entity surface form:
King Sebastian of Portugal