Battle of São Mamede
E881567
The Battle of São Mamede was a pivotal 1128 conflict near Guimarães in which Afonso Henriques asserted power over his mother’s faction, setting the stage for his rule as Afonso I and the emergence of Portugal as an independent kingdom.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Battle of São Mamede canonical | 5 |
| Batalha de São Mamede | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10709856 — 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: Battle of São Mamede Context triple: [Afonso I of Portugal, significantEvent, Battle of São Mamede]
-
A.
Battle of Aljubarrota
The Battle of Aljubarrota was a decisive 1385 clash in which Portuguese forces, allied with England, defeated Castile and secured Portugal’s independence and the Aviz dynasty’s rule.
-
B.
Battle of Alfarrobeira
The Battle of Alfarrobeira was a 1449 Portuguese civil conflict in which royal forces defeated and killed the influential infante Peter, Duke of Coimbra, marking a decisive power shift in the kingdom.
-
C.
Battle of Ourique
The Battle of Ourique was a pivotal 1139 victory of the Portuguese forces over Muslim armies that became a foundational legend in the emergence of the Kingdom of Portugal and the rule of Afonso I.
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D.
Battle of Castelo Rodrigo
The Battle of Castelo Rodrigo was a 1664 engagement in which Portuguese forces decisively defeated a larger Spanish army, helping secure Portugal’s independence during the Restoration War.
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E.
Battle of Valdevez
The Battle of Valdevez was a 12th-century confrontation between the Kingdom of León and the emerging Kingdom of Portugal that helped solidify Portuguese autonomy and contributed to its eventual recognition as an independent kingdom.
- 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: Battle of São Mamede Target entity description: The Battle of São Mamede was a pivotal 1128 conflict near Guimarães in which Afonso Henriques asserted power over his mother’s faction, setting the stage for his rule as Afonso I and the emergence of Portugal as an independent kingdom.
-
A.
Battle of Aljubarrota
The Battle of Aljubarrota was a decisive 1385 clash in which Portuguese forces, allied with England, defeated Castile and secured Portugal’s independence and the Aviz dynasty’s rule.
-
B.
Battle of Alfarrobeira
The Battle of Alfarrobeira was a 1449 Portuguese civil conflict in which royal forces defeated and killed the influential infante Peter, Duke of Coimbra, marking a decisive power shift in the kingdom.
-
C.
Battle of Ourique
The Battle of Ourique was a pivotal 1139 victory of the Portuguese forces over Muslim armies that became a foundational legend in the emergence of the Kingdom of Portugal and the rule of Afonso I.
-
D.
Battle of Castelo Rodrigo
The Battle of Castelo Rodrigo was a 1664 engagement in which Portuguese forces decisively defeated a larger Spanish army, helping secure Portugal’s independence during the Restoration War.
-
E.
Battle of Valdevez
The Battle of Valdevez was a 12th-century confrontation between the Kingdom of León and the emerging Kingdom of Portugal that helped solidify Portuguese autonomy and contributed to its eventual recognition as an independent kingdom.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
battle
ⓘ
medieval battle ⓘ |
| alsoKnownAs |
Batalha de São Mamede
ⓘ
linked to:
Battle of São Mamede
|
| associatedWithTitle | Afonso I of Portugal ⓘ |
| belligerent |
Afonso Henriques faction
ⓘ
linked to:
House of Vímara Peres
Theresa of Portugal faction ⓘ |
| chronologicalPosition | early 12th century ⓘ |
| commander |
Afonso Henriques
ⓘ
linked to:
Afonso I of Portugal
Fernão Peres de Trava ⓘ Theresa of Portugal ⓘ |
| commemoratedAt | Guimarães ⓘ |
| commemoratedIn | Portuguese national historiography ⓘ |
| conflictType | civil war battle ⓘ |
| country | County of Portugal ⓘ |
| date | 1128-06-24 ⓘ |
| followedBy |
Afonso Henriques’s later assumption of the title King of Portugal
ⓘ
consolidation of Afonso Henriques’s rule in Portugal ⓘ |
| hasMainProtagonist |
Afonso Henriques
ⓘ
linked to:
Afonso I of Portugal
|
| hasSecondaryProtagonist |
Fernão Peres de Trava
ⓘ
Theresa of Portugal ⓘ |
| historicalEra | High Middle Ages ⓘ |
| languageContext | Portuguese-speaking territories ⓘ |
| legacy |
key event in the rise of the Portuguese monarchy
ⓘ
symbol of the birth of Portugal ⓘ |
| locatedNear | Guimarães ⓘ |
| militaryContext | noble-led feudal armies ⓘ |
| opponentRelationship | Afonso Henriques opposed his mother Theresa of Portugal ⓘ |
| outcome |
Afonso Henriques assumed control of the County of Portugal
ⓘ
linked to:
Afonso I of Portugal
Afonso Henriques marginalized Galician influence in Portugal ⓘ strengthening of Portuguese autonomy from the Kingdom of León ⓘ |
| partOf |
Portuguese–Leonese dynastic conflicts
ⓘ
struggle for control of the County of Portugal ⓘ |
| place | São Mamede ⓘ |
| politicalContext |
contestation of authority between Afonso Henriques and Theresa of Portugal
ⓘ
tensions between local Portuguese nobility and Galician influence ⓘ |
| predecessorEvent | regency of Theresa of Portugal in the County of Portugal ⓘ |
| presentDayLocation | Portugal ⓘ |
| region | Iberian Peninsula ⓘ |
| relatedTo |
County of Portugal
ⓘ
Kingdom of León ⓘ Portuguese independence ⓘ
linked to:
Restoration of Independence of Portugal
|
| result |
defeat of Theresa of Portugal faction
ⓘ
victory for Afonso Henriques ⓘ |
| significance |
considered a foundational event in the emergence of Portugal as a kingdom
ⓘ
marked the political ascendancy of Afonso Henriques ⓘ pivotal step toward Portuguese independence ⓘ |
| year | 1128 ⓘ |
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: Battle of São Mamede Description of subject: The Battle of São Mamede was a pivotal 1128 conflict near Guimarães in which Afonso Henriques asserted power over his mother’s faction, setting the stage for his rule as Afonso I and the emergence of Portugal as an independent kingdom.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.