CACrown ArchivesThe cinema collection
EN/FR
Search
Menu
Research dossier · Places & Architecture

Suomenlinna

Sea fortress by Helsinki, Finland

Architectural plans, a scale model, maps and brass measuring instruments
Places and architectureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 20, 2026
Entity authoritySource title only
Source-derived summary

Suomenlinna, or Sveaborg, is a sea fortress composed of eight islands, of which six have been fortified. Located about four kilometres (2.5 mi) southeast of the city center of Helsinki, Finland, Suomenlinna is a popular destination for both tourists and locals, who enjoy it as a picturesque picnic site.

Editorial summary

“Suomenlinna” enters the record as sea fortress by Helsinki, Finland. Crown Archives preserves that source wording while asking what Suomenlinna, fortress and Helsinki can confirm, complicate or overturn.

Editorial reviewA valuable geographic starting point for tracing changing names, boundaries, uses and administrative responsibility. The current 49-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Suomenlinna, fortress and Helsinki.
Editorial analysis

Why this record matters

“Suomenlinna” is worth following because a concise public description often conceals a longer documentary argument. Here, Suomenlinna, fortress and Helsinki provides the most credible route into that argument.

Evidence profile

The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Sep 20, 2026.

Critical limits

Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.

Best used for
  • Historic place names
  • Jurisdictional context
  • Routes into maps and plans
Verify next

Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.

Three-step research path

  1. Establish the record: confirm the title “Suomenlinna”, its source revision and the description used here.
  2. Expand the search: follow Suomenlinna primary sources, Suomenlinna archive and Suomenlinna research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Suomenlinna”?
  2. Which authority defined the place, boundary or structure at the relevant date?
  3. Which earlier names or jurisdictions may reveal additional records?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Suomenlinna” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.