Treaty of Windsor

E661530

alliance treaty bilateral treaty

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.

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All labels observed (2)

Label	Occurrences
Treaty of Windsor canonical	2
Treaty of Windsor (1899)	1

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 ⓘ

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Treaties of Portugal → hasPart → Treaty of Windsor ⓘ

Kingdom of Portugal → treaty → Treaty of Windsor ⓘ

Anglo-Portuguese Alliance → hasPart → Treaty of Windsor ⓘ

this entity surface form: Treaty of Windsor (1899)