Østerøya
peninsula in Sandefjord, Norway
Østerøya (lit. 'East Island') a peninsula in Sandefjord Municipality in Vestfold county, Norway. It is one of two long, narrow peninsulas located south of the city of Sandefjord. The peninsula lies between the Mefjorden and Tønsbergfjorden and it sits across the fjord from the Vesterøya peninsula. The Tønsberg Barrel is located on the southern end of the peninsula. The Tønsberg Barrel is an old sea mark that is mentioned in Sverris saga. It has been described as one of the most beautiful sites in Sandefjord.
Østerøya has a large number of beaches, campgrounds, recreational areas, and vacation homes. The peninsula has a length of 10 kilometres (6.2 mi), and is between 1–2 kilometres (0.62–1.24 mi) in width. It was previously known as Yxnøy, a name which now is used for the southernmost point of the peninsula. Yxnøy, also spelled Yxney, is now a recreational area home to several beaches, forests, sloping rocks, hiking trails, and Tønsberg Barrel.
“Østerøya” enters the record as peninsula in Sandefjord, Norway. Crown Archives preserves that source wording while asking what Østerøya, peninsula and Sandefjord can confirm, complicate or overturn.
Why this record matters
“Østerøya” is worth following because a concise public description often conceals a longer documentary argument. Here, Østerøya, peninsula and Sandefjord provides the most credible route into that argument.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jul 6, 2026. The linked authority identifier is Q4588369. Authority coordinates are 59.095, 10.299. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. 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
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Østerøya”, its source revision and the description used here.
- Expand the search: follow Østerøya primary sources, Østerøya archive and Østerøya 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 “Østerøya”?
- Which institution is responsible for the underlying evidence?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Østerøya” 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.