Treaty of Windsor
E661530
The Treaty of Windsor is a 1386 alliance agreement between Portugal and England that established one of the oldest enduring diplomatic and military alliances in the world.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Treaty of Windsor canonical | 2 |
| Treaty of Windsor (1899) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7408678 — 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: Treaty of Windsor Context triple: [Treaties of Portugal, hasPart, Treaty of Windsor]
-
A.
Treaty of Nonsuch
The Treaty of Nonsuch was a 1585 agreement in which Elizabeth I of England pledged military support to the Dutch rebels against Spanish rule, marking a major escalation in the Anglo-Spanish conflict.
-
B.
Treaty of Wallingford
The Treaty of Wallingford was a 1153 agreement that ended the civil war in England between supporters of King Stephen and Empress Matilda by recognizing Stephen as king while naming Matilda’s son Henry (the future Henry II) as his heir.
-
C.
Treaty of Edinburgh
The Treaty of Edinburgh was a 1560 agreement that ended French military intervention in Scotland and effectively secured Protestant reform and greater English influence in Scottish affairs.
-
D.
Treaty of Canterbury
The Treaty of Canterbury is the 1986 bilateral agreement between the United Kingdom and France that authorized, defined, and governs the construction and operation of the Channel Tunnel.
-
E.
Windsor Agreement
The Windsor Agreement is a post-Brexit deal between the United Kingdom and the European Union that revises the Northern Ireland Protocol to ease trade frictions while preserving an open border on the island of Ireland.
- 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: Treaty of Windsor Target entity description: The Treaty of Windsor is a 1386 alliance agreement between Portugal and England that established one of the oldest enduring diplomatic and military alliances in the world.
-
A.
Treaty of Nonsuch
The Treaty of Nonsuch was a 1585 agreement in which Elizabeth I of England pledged military support to the Dutch rebels against Spanish rule, marking a major escalation in the Anglo-Spanish conflict.
-
B.
Treaty of Wallingford
The Treaty of Wallingford was a 1153 agreement that ended the civil war in England between supporters of King Stephen and Empress Matilda by recognizing Stephen as king while naming Matilda’s son Henry (the future Henry II) as his heir.
-
C.
Treaty of Edinburgh
The Treaty of Edinburgh was a 1560 agreement that ended French military intervention in Scotland and effectively secured Protestant reform and greater English influence in Scottish affairs.
-
D.
Treaty of Canterbury
The Treaty of Canterbury is the 1986 bilateral agreement between the United Kingdom and France that authorized, defined, and governs the construction and operation of the Channel Tunnel.
-
E.
Windsor Agreement
The Windsor Agreement is a post-Brexit deal between the United Kingdom and the European Union that revises the Northern Ireland Protocol to ease trade frictions while preserving an open border on the island of Ireland.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
alliance treaty
ⓘ
bilateral treaty ⓘ |
| appliesTo |
trade between Portugal and England
ⓘ
war and peace situations ⓘ |
| continentContext | Europe NERFINISHED ⓘ |
| countryInvolved |
Kingdom of England
NERFINISHED
ⓘ
Kingdom of Portugal NERFINISHED ⓘ |
| dateSigned | 1386-05-09 ⓘ |
| describedAs |
cornerstone of Anglo-Portuguese relations
ⓘ
one of the oldest still-in-force diplomatic alliances ⓘ |
| establishes |
commercial cooperation
ⓘ
freedom of movement for merchants ⓘ mutual defense obligations ⓘ mutual military assistance ⓘ perpetual alliance between Portugal and England ⓘ |
| follows | Treaty of Tagilde NERFINISHED ⓘ |
| guarantees |
mutual aid in case of attack
ⓘ
protection of merchants ⓘ safe conduct for subjects of both kingdoms ⓘ |
| hasEffectOn |
foreign policy of England
ⓘ
foreign policy of Portugal ⓘ |
| hasLongTermImpactOn |
Anglo-Portuguese military cooperation
ⓘ
Anglo-Portuguese trade relations ⓘ |
| hasPart |
commercial privileges clause
ⓘ
friendship and peace clause ⓘ military alliance clause ⓘ mutual defense clause ⓘ |
| historicalPeriod | Late Middle Ages ⓘ |
| language | Latin NERFINISHED ⓘ |
| legalStatus | in force ⓘ |
| motivatedBy |
dynastic and strategic interests
ⓘ
need for mutual support against Castile ⓘ |
| placeSigned |
Kingdom of England
NERFINISHED
ⓘ
Windsor NERFINISHED ⓘ |
| precedes | later Anglo-Portuguese treaties ⓘ |
| recognizedAs | foundation of continuous Anglo-Portuguese alliance ⓘ |
| relatedTo | Anglo-Portuguese Alliance NERFINISHED ⓘ |
| signatory |
John I of Portugal
NERFINISHED
ⓘ
Richard II of England NERFINISHED ⓘ |
| signedUnderReignOf |
John I of Portugal
NERFINISHED
ⓘ
Richard II of England NERFINISHED ⓘ |
| strengthenedBy | marriage of John I of Portugal and Philippa of Lancaster ⓘ |
| typeOfAlliance |
diplomatic alliance
ⓘ
military alliance ⓘ |
| yearSigned | 1386 ⓘ |
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: Treaty of Windsor Description of subject: The Treaty of Windsor is a 1386 alliance agreement between Portugal and England that established one of the oldest enduring diplomatic and military alliances in the world.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Treaty of Windsor (1899)