Anglo-Portuguese Alliance

E278768
bilateral treaty diplomatic alliance military alliance

The Anglo-Portuguese Alliance is a historic diplomatic and military partnership between England (later Britain) and Portugal, often cited as the oldest continuous alliance in the world.

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All labels observed (7)

Label Occurrences
Anglo-Portuguese Alliance canonical 6
Anglo-Portuguese alliance 4
Anglo-Portuguese Treaty negotiations 1

Statements (49)

Predicate Object
instanceOf bilateral treaty ⓘ
diplomatic alliance ⓘ
military alliance ⓘ
appliesTo foreign policy of England ⓘ
foreign policy of Great Britain ⓘ
foreign policy of Portugal ⓘ
foreign policy of the United Kingdom ⓘ
characteristic commercial cooperation ⓘ
defensive alliance ⓘ
mutual military assistance ⓘ
naval cooperation ⓘ
country1 Kingdom of England ⓘ
country1Successor United Kingdom ⓘ
country2 Kingdom of Portugal ⓘ
country2Successor Portugal ⓘ
surface form: Portuguese Republic
describedAs oldest continuous alliance in the world ⓘ
perpetual friendship and union ⓘ
hasEffect long-term strategic partnership between Britain and Portugal ⓘ
hasPart Methuen Treaty ⓘ
Treaty of London (1373) ⓘ
Treaty of Tagilde ⓘ
Treaty of Windsor (1386) ⓘ
Treaty of Windsor ⓘ
surface form: Treaty of Windsor (1899)

Treaty of Windsor (1914) ⓘ
historicalPeriod 19th century ⓘ
20th century ⓘ
21st century ⓘ
Early Modern period ⓘ
surface form: Early modern period

Late Middle Ages ⓘ
influenced British access to Atlantic trade routes ⓘ
Portuguese security against Castile and Spain ⓘ
legalBasis Treaty of London (1373) ⓘ
Treaty of Windsor (1386) ⓘ
notableEvent Anglo-Portuguese cooperation during the Peninsular War ⓘ
Battle of Aljubarrota ⓘ
British protection of Portuguese colonies in various wars ⓘ
British use of the Azores bases in World War II ⓘ
English military support for Portugal in the 1383–1385 Crisis ⓘ
Portuguese cooperation with Britain in World War II ⓘ
Portuguese participation alongside Britain in World War I ⓘ
use of Portuguese ports by the Royal Navy ⓘ
primaryLanguage English ⓘ
Portuguese ⓘ
region Europe ⓘ
relatedOrganization Portuguese Navy ⓘ
Royal Navy ⓘ
relatedTo NATO ⓘ
startDate 1373-06-16 ⓘ
status in force ⓘ

Referenced by (15)

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

Catherine of Braganza (as queen consort of Scotland) → associatedWith → Anglo-Portuguese Alliance ⓘ
subject surface form: Catherine of Braganza
Philippa of Lancaster → dynasticAlliance → Anglo-Portuguese Alliance ⓘ
this entity surface form: Anglo-Portuguese alliance
Philippa of Lancaster → helpedStrengthen → Anglo-Portuguese Alliance ⓘ
this entity surface form: Anglo-Portuguese alliance
British Ultimatum of 1890 → historicalContext → Anglo-Portuguese Alliance ⓘ
this entity surface form: Anglo-Portuguese Treaty negotiations
Portugal campaign of the Seven Years' War → hasMilitaryAlliance → Anglo-Portuguese Alliance ⓘ
War of the Oranges (as related conflict) → relatedTo → Anglo-Portuguese Alliance ⓘ
subject surface form: War of the Oranges
this entity surface form: Anglo-Portuguese alliance
Kingdom of Portugal → alliance → Anglo-Portuguese Alliance ⓘ
Battle of Ameixial → combatantSide → Anglo-Portuguese Alliance ⓘ
this entity surface form: Portuguese-English alliance
Treaty of Fontainebleau (1807) → context → Anglo-Portuguese Alliance ⓘ
this entity surface form: Anglo-Portuguese alliance
Portuguese expedition of 1381–1382 → relatedTo → Anglo-Portuguese Alliance ⓘ
this entity surface form: Anglo-Portuguese relations
Portuguese participation in World War I → cause → Anglo-Portuguese Alliance ⓘ
Treaty of Windsor (1386) → partOf → Anglo-Portuguese Alliance ⓘ
Treaty of Windsor (1386) → hasEffectOn → Anglo-Portuguese Alliance ⓘ
this entity surface form: Anglo-Portuguese diplomatic relations
Battle of Aljubarrota → alliance → Anglo-Portuguese Alliance ⓘ
this entity surface form: Portuguese–English alliance
1383–1385 Portuguese interregnum → alliance → Anglo-Portuguese Alliance ⓘ