Siege of Sveaborg (1808)

E410278

military engagement siege

The Siege of Sveaborg (1808) was a pivotal engagement of the Finnish War in which Russian forces blockaded and compelled the surrender of the major Swedish fortress of Sveaborg (Suomenlinna) off Helsinki, hastening Russia’s conquest of Finland.

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All labels observed (3)

Label	Occurrences
Siege of Suomenlinna	1
Siege of Sveaborg (1808) canonical	1
defence of Sveaborg	1

How this entity was disambiguated

This entity first appeared as the object of triple T4071529 — 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: Siege of Sveaborg (1808)
Context triple: [Suomenlinna, significantEvent, Siege of Sveaborg (1808)]

A. Siege of Narva (1704)
The Siege of Narva (1704) was a major Russian victory over Sweden during the Great Northern War, resulting in the capture of the strategic Baltic fortress city of Narva.
B. Bombardment of Sveaborg
The Bombardment of Sveaborg was an 1855 Anglo-French naval attack on the Russian fortress of Sveaborg (near Helsinki) during the Crimean War.
C. Siege of Riga (1700)
The Siege of Riga (1700) was an early and pivotal Russian-led attempt to capture the Swedish-held Baltic port city of Riga during the opening phase of the Great Northern War.
D. Battle of Narva (1700)
The Battle of Narva (1700) was an early Great Northern War clash in which outnumbered Swedish forces under Charles XII decisively defeated the Russian army near the city of Narva.
E. Siege of Danzig (1807)
The Siege of Danzig (1807) was a key Napoleonic campaign in which French-led forces captured the strategically vital Baltic port city of Danzig from Prussian and Russian defenders.
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: Siege of Sveaborg (1808)
Target entity description: The Siege of Sveaborg (1808) was a pivotal engagement of the Finnish War in which Russian forces blockaded and compelled the surrender of the major Swedish fortress of Sveaborg (Suomenlinna) off Helsinki, hastening Russia’s conquest of Finland.

A. Siege of Narva (1704)
The Siege of Narva (1704) was a major Russian victory over Sweden during the Great Northern War, resulting in the capture of the strategic Baltic fortress city of Narva.
B. Bombardment of Sveaborg
The Bombardment of Sveaborg was an 1855 Anglo-French naval attack on the Russian fortress of Sveaborg (near Helsinki) during the Crimean War.
C. Siege of Riga (1700)
The Siege of Riga (1700) was an early and pivotal Russian-led attempt to capture the Swedish-held Baltic port city of Riga during the opening phase of the Great Northern War.
D. Battle of Narva (1700)
The Battle of Narva (1700) was an early Great Northern War clash in which outnumbered Swedish forces under Charles XII decisively defeated the Russian army near the city of Narva.
E. Siege of Danzig (1807)
The Siege of Danzig (1807) was a key Napoleonic campaign in which French-led forces captured the strategically vital Baltic port city of Danzig from Prussian and Russian defenders.
F. None of above. chosen

Statements (46)

Predicate	Object
instanceOf	military engagement ⓘ siege ⓘ
alsoKnownAs	Siege of Suomenlinna ⓘ linked to: Siege of Sveaborg (1808)
associatedWith	controversy over Cronstedt’s surrender ⓘ
belligerent	Kingdom of Sweden ⓘ Russian Empire ⓘ
besiegingForce	Russian forces ⓘ
category	Conflicts in 1808 ⓘ Sieges involving Russia ⓘ Sieges involving Sweden ⓘ
chronologicalOrderInWar	early campaign of the Finnish War ⓘ
commander	Carl Olof Cronstedt ⓘ Friedrich Wilhelm von Buxhoeveden ⓘ Jan Peter van Suchtelen ⓘ
conflict	Finnish War ⓘ
consequence	demoralization of Swedish forces in Finland ⓘ loss of Sweden’s main naval base in Finland ⓘ strengthening of Russian strategic position in the Baltic ⓘ
countryAtTime	Kingdom of Sweden ⓘ
endDate	1808-05-03 ⓘ
followedBy	continued Russian advance in Finland ⓘ
fortressNameAtTime	Sveaborg ⓘ linked to: Russian coastal fortifications at Sveaborg
fortressType	sea fortress ⓘ
garrisonSide	Swedish garrison ⓘ
garrisonStrengthApprox	about 6,000–7,000 Swedish troops ⓘ
historicalRegion	Finland ⓘ
location	Gulf of Finland ⓘ Suomenlinna ⓘ linked to: Suomenlinna sea fortress Sveaborg fortress ⓘ linked to: Suomenlinna sea fortress off Helsinki ⓘ
modernFortressName	Suomenlinna ⓘ linked to: Suomenlinna sea fortress
navalAssetsCaptured	large part of the Swedish archipelago fleet in Finland ⓘ
nearbyCity	Helsinki ⓘ
partOf	Finnish War ⓘ Napoleonic Wars ⓘ
precededBy	Russian invasion of Finland (1808) ⓘ linked to: Finnish War
relatedTo	Treaty of Fredrikshamn ⓘ
result	Russian victory ⓘ surrender of Swedish fortress of Sveaborg ⓘ
significance	hastened Russia’s conquest of Finland ⓘ pivotal engagement of the Finnish War ⓘ
startDate	1808-03-18 ⓘ
tacticUsed	blockade ⓘ bombardment ⓘ
theatre	Baltic theatre of the Napoleonic Wars ⓘ linked to: Baltic theatre of the French Revolutionary and Napoleonic Wars
year	1808 ⓘ

How these facts were elicited

Referenced by (3)

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

Suomenlinna → significantEvent → Siege of Sveaborg (1808) ⓘ

subject linked to: Suomenlinna sea fortress

Siege of Sveaborg (1808) → alsoKnownAs → Siege of Suomenlinna ⓘ

linked to: Siege of Sveaborg (1808)

Vladimir von Berg → notableWork → defence of Sveaborg ⓘ

subject linked to: Admiral Vladimir von Berg