Treaty of Alcáçovas
E150736
The Treaty of Alcáçovas was a 1479 peace agreement between Portugal and Castile that helped end the War of the Castilian Succession and divided Atlantic spheres of influence, confirming Portuguese control over most Atlantic islands and West African territories.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Treaty of Alcáçovas canonical | 5 |
| Peace of Alcáçovas | 1 |
| Treaty of Alcáçovas-Toledo | 1 |
| Treaty of Granada (1491) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1303254 — 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.
Target entity: Treaty of Alcáçovas Context triple: [John II of Portugal, notableEvent, Treaty of Alcáçovas]
-
A.
Treaty of Zaragoza
The Treaty of Zaragoza was a 1529 agreement between Spain and Portugal that defined their spheres of influence in Asia and the Pacific by establishing an antimeridian to the earlier Treaty of Tordesillas.
-
B.
Treaty of Tordesillas
The Treaty of Tordesillas was a 1494 agreement between Spain and Portugal, brokered by the papacy, that divided newly discovered lands outside Europe between the two powers and shaped the colonial map of the Americas and beyond.
-
C.
Treaties of Córdoba
The Treaties of Córdoba were the 1821 agreements between Spanish royalist authorities and Mexican insurgents that recognized Mexico’s independence and laid the groundwork for its first constitutional order.
-
D.
Treaty of the Pyrenees
The Treaty of the Pyrenees was a 1659 peace agreement between France and Spain that ended their long conflict during the Thirty Years’ War era and significantly redrew the border in favor of France.
-
E.
Treaty of Oliva
The Treaty of Oliva was a 1660 peace agreement that ended the Northern Wars between Sweden, the Polish–Lithuanian Commonwealth, and Brandenburg-Prussia, confirming Sweden’s great-power status in the Baltic region.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Treaty of Alcáçovas Target entity description: The Treaty of Alcáçovas was a 1479 peace agreement between Portugal and Castile that helped end the War of the Castilian Succession and divided Atlantic spheres of influence, confirming Portuguese control over most Atlantic islands and West African territories.
-
A.
Treaty of Zaragoza
The Treaty of Zaragoza was a 1529 agreement between Spain and Portugal that defined their spheres of influence in Asia and the Pacific by establishing an antimeridian to the earlier Treaty of Tordesillas.
-
B.
Treaty of Tordesillas
The Treaty of Tordesillas was a 1494 agreement between Spain and Portugal, brokered by the papacy, that divided newly discovered lands outside Europe between the two powers and shaped the colonial map of the Americas and beyond.
-
C.
Treaties of Córdoba
The Treaties of Córdoba were the 1821 agreements between Spanish royalist authorities and Mexican insurgents that recognized Mexico’s independence and laid the groundwork for its first constitutional order.
-
D.
Treaty of the Pyrenees
The Treaty of the Pyrenees was a 1659 peace agreement between France and Spain that ended their long conflict during the Thirty Years’ War era and significantly redrew the border in favor of France.
-
E.
Treaty of Oliva
The Treaty of Oliva was a 1660 peace agreement that ended the Northern Wars between Sweden, the Polish–Lithuanian Commonwealth, and Brandenburg-Prussia, confirming Sweden’s great-power status in the Baltic region.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
international treaty
ⓘ
peace treaty ⓘ |
| allocatedTo |
Atlantic islands south of the Canaries – Kingdom of Portugal
ⓘ
Canary Islands – Crown of Castile ⓘ Portuguese Gold Coast ⓘ
surface form:
West African trade – Kingdom of Portugal
|
| alsoKnownAs |
Treaty of Alcáçovas
ⓘ
surface form:
Peace of Alcáçovas
Treaty of Alcáçovas ⓘ
surface form:
Treaty of Alcáçovas-Toledo
|
| category |
15th-century treaties
ⓘ
Treaties of Portugal ⓘ Treaties of Spain ⓘ
surface form:
Treaties of the Crown of Castile
|
| confirmedControlOf |
Azores
ⓘ
Cape Verde Islands ⓘ Guinea Coast ⓘ
surface form:
Guinea coast
Madeira ⓘ West African territories south of the Canary Islands ⓘ |
| dateSigned | 1479-09-04 ⓘ |
| endedConflict | War of the Castilian Succession ⓘ |
| followedEvent | Battle of Toro ⓘ |
| granted |
Portuguese monopoly over navigation and trade in Guinea
ⓘ
Portuguese monopoly over navigation and trade in lands south of the Canary Islands ⓘ |
| historicalPeriod |
Age of Exploration
ⓘ
surface form:
Age of Discovery
|
| impact |
limited Castilian expansion in the Atlantic before Columbus
ⓘ
strengthened Portuguese maritime empire in the Atlantic ⓘ |
| includedClause |
Portuguese renunciation of claims to the Castilian throne
ⓘ
marriage arrangements between the houses of Trastámara and Avis ⓘ renunciation of Castilian claims to Portuguese Atlantic possessions ⓘ |
| involvedDynasticClaim |
Isabella I of Castile
ⓘ
Joanna la Beltraneja ⓘ |
| language |
Castilian
ⓘ
Portuguese ⓘ |
| limitedRightsOf | Castilian navigation in the Atlantic south of the Canary Islands ⓘ |
| partOf | War of the Castilian Succession ⓘ |
| predecessorOf | Treaty of Tordesillas ⓘ |
| recognizedAs |
Castilian sovereignty over the Canary Islands
ⓘ
Portuguese sphere of influence in the Atlantic ⓘ |
| result |
division of Atlantic spheres of influence
ⓘ
peace between Portugal and Castile ⓘ |
| signatory |
Crown of Castile
ⓘ
Kingdom of Portugal ⓘ |
| signedIn |
Alcáçovas
ⓘ
Kingdom of Portugal ⓘ |
| subject |
Atlantic islands sovereignty
ⓘ
West African trade ⓘ colonial expansion ⓘ maritime navigation rights ⓘ |
| yearSigned | 1479 ⓘ |
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.
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.
Subject: Treaty of Alcáçovas Description of subject: The Treaty of Alcáçovas was a 1479 peace agreement between Portugal and Castile that helped end the War of the Castilian Succession and divided Atlantic spheres of influence, confirming Portuguese control over most Atlantic islands and West African territories.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.