Fortress of Sagres

E230700

cultural heritage site fortress tourist attraction

The Fortress of Sagres is a historic coastal stronghold in Portugal’s Algarve region, long associated with maritime exploration and the legacy of Prince Henry the Navigator.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (5)

Label	Occurrences
Fortaleza de Sagres	3
Fortress of Sagres canonical	1
Sagres	1
Sagres Fortress	1
School of Sagres	1

How this entity was disambiguated

This entity first appeared as the object of triple T2044096 — 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: Fortress of Sagres
Context triple: [Municipality of Vila do Bispo, hasNotableSite, Fortress of Sagres]

A. São Jorge Castle
São Jorge Castle is a historic Moorish-era fortress and popular viewpoint overlooking central Lisbon and the Tagus River.
B. Silves Castle
Silves Castle is a well-preserved medieval Moorish fortress in the town of Silves in Portugal’s Algarve region, known for its red sandstone walls and historical significance.
C. Castelo de Vide
Castelo de Vide is a historic hilltop town in Portugal’s Alentejo region, known for its well-preserved medieval castle and Jewish quarter.
D. Castelo de Tavira
Castelo de Tavira is a historic medieval castle in the town of Tavira in Portugal’s Algarve region, known for its preserved walls, towers, and panoramic views over the city.
E. Tavira Tower
Tavira Tower is an 18th-century watchtower in Cádiz, Spain, best known for its historic role as a lookout point and for housing a popular camera obscura offering panoramic views of the city.
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: Fortress of Sagres
Target entity description: The Fortress of Sagres is a historic coastal stronghold in Portugal’s Algarve region, long associated with maritime exploration and the legacy of Prince Henry the Navigator.

A. São Jorge Castle
São Jorge Castle is a historic Moorish-era fortress and popular viewpoint overlooking central Lisbon and the Tagus River.
B. Silves Castle
Silves Castle is a well-preserved medieval Moorish fortress in the town of Silves in Portugal’s Algarve region, known for its red sandstone walls and historical significance.
C. Castelo de Vide
Castelo de Vide is a historic hilltop town in Portugal’s Alentejo region, known for its well-preserved medieval castle and Jewish quarter.
D. Castelo de Tavira
Castelo de Tavira is a historic medieval castle in the town of Tavira in Portugal’s Algarve region, known for its preserved walls, towers, and panoramic views over the city.
E. Tavira Tower
Tavira Tower is an 18th-century watchtower in Cádiz, Spain, best known for its historic role as a lookout point and for housing a popular camera obscura offering panoramic views of the city.
F. None of above. chosen

Statements (46)

Predicate	Object
instanceOf	cultural heritage site ⓘ fortress ⓘ tourist attraction ⓘ
architecturalStyle	military architecture ⓘ
associatedWith	Age of Exploration ⓘ surface form: Portuguese Discoveries Portuguese maritime exploration ⓘ Henry the Navigator ⓘ surface form: Prince Henry the Navigator
category	Buildings and structures in Faro District ⓘ Coastal fortifications in Portugal ⓘ Forts in Portugal ⓘ Tourist attractions in Algarve ⓘ
country	Portugal ⓘ
destroyedBy	Francis Drake ⓘ
hasPart	artillery platforms ⓘ bastions ⓘ Igreja de Nossa Senhora da Graça ⓘ surface form: chapel of Nossa Senhora da Graça curtain walls ⓘ entrance gate ⓘ sea cliffs ⓘ wind compass ⓘ
hasUse	cultural interpretation center ⓘ military defense ⓘ tourism ⓘ
heritageDesignation	Monument of Public Interest (Portugal) ⓘ Property of Public Interest (Portugal) ⓘ
inception	15th century ⓘ
locatedIn	Algarve ⓘ Sagres ⓘ Vila do Bispo ⓘ
locatedInTimeZone	Western European Time ⓘ
locatedNear	Cape St. Vincent ⓘ Sagres ⓘ surface form: Sagres town
locatedOn	Atlantic Ocean coast ⓘ Sagres Peninsula ⓘ surface form: Sagres Promontory
materialUsed	stone ⓘ
openToPublic	yes ⓘ
operator	Direção-Geral do Património Cultural ⓘ
originallyBuiltBy	Henry the Navigator ⓘ surface form: Prince Henry the Navigator
ownedBy	Portuguese state ⓘ
partOf	Promontory of Sagres cultural landscape ⓘ
reconstructedIn	16th century ⓘ 18th century ⓘ
significantEvent	1587 attack by Francis Drake ⓘ Age of Exploration ⓘ surface form: Age of Discoveries
viewOver	Atlantic Ocean ⓘ Sagres Peninsula ⓘ surface form: cliffs of Sagres Promontory

How these facts were elicited

Referenced by (7)

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

Municipality of Vila do Bispo → hasNotableSite → Fortress of Sagres ⓘ

voyages of Henry the Navigator → organizedFrom → Fortress of Sagres ⓘ

this entity surface form: Sagres

voyages of Henry the Navigator → associatedInstitution → Fortress of Sagres ⓘ

this entity surface form: School of Sagres

Igreja de Nossa Senhora da Graça → locatedNear → Fortress of Sagres ⓘ

this entity surface form: Fortaleza de Sagres

Praia da Mareta → near → Fortress of Sagres ⓘ

this entity surface form: Fortaleza de Sagres

Praia do Tonel → near → Fortress of Sagres ⓘ

this entity surface form: Sagres Fortress

Praia do Beliche → near → Fortress of Sagres ⓘ

this entity surface form: Fortaleza de Sagres

All labels observed (5)

How this entity was disambiguated Show

Statements (46)

How these facts were elicited Show

Referenced by (7)

How this entity was disambiguated

How these facts were elicited