Grönskär
island in the Stockholm archipelego and Värmdö Municipality, Sweden

Grönskär (English: The Green skerry) is a Swedish island and lighthouse station located in the south Stockholm archipelago, east of Sandhamn. The island is rocky and the nature sparse. The herb cloudberry has been found on the island. The whole island is owned by the Swedish foundation "Skärgårdsstiftelsen" (English: The Archipelago foundation). since 1964. The foundation also owns the lighthouse since 1984.
History
The Grönskär lighthouse construction started in 1769. Sketchings were made by the architect Carl Adelcrantz. The tower replaced a day beacon that was built 1725, and destroyed in a storm in 1768. The light was an open coal fire.
Begin with the source’s own compact description: “Grönskär” is island in the Stockholm archipelego and Värmdö Municipality, Sweden. The dossier treats that line as a proposition to test through Grönskär, island and Stockholm, not as a finished interpretation.
Why this record matters
The phrase “island in the Stockholm archipelego and Värmdö Municipality, Sweden” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
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 Apr 30, 2026. The linked authority identifier is Q33133908. Authority coordinates are 59.278, 19.026. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1964, 1984, 1769 and 1725.
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.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Grönskär”, its source revision and the description used here.
- Expand the search: follow Grönskär primary sources, Grönskär archive and Grönskär research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Grönskär”?
- Which earlier names or jurisdictions may reveal additional records?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Grönskär” 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.