Rognvald Eysteinsson
9th century Norse viking and first Jarl of Møre
Rognvald Eysteinsson (fl. 865) was the founding Jarl (or Earl) of Møre in Norway, and a close relative and ally of Harald Fairhair, the earliest known King of Norway. In the Norse language he is known as Rǫgnvaldr Eysteinsson (Mǿrajarl) and in modern Norwegian as Ragnvald Mørejarl. He is sometimes referred to with bynames that may be translated into modern English as "Rognvald the Wise" or "Rognvald the Powerful".
The earliest available sources regarding Rognvald are mutually contradictory and were compiled long after he died. The best known are the Norse Sagas, although modern scholars highlight many inconsistencies and improbable claims regarding Rognvald in the sagas, and believe that they must be treated with caution: The texts of the sagas were compiled three centuries after the events described and their accuracy in regard to Rognvald's life and historical significance is now questioned. Hence some scholars instead emphasise other accounts, closer to the historical period in question, such as Irish and Scottish sources.
While Rognvald does appear to have had some kind of role in the founding of the Norse Earldom of Orkney, most historians now doubt claims in the Sagas that Rognvald led one particular "great voyage" – a Norwegian expedition that attacked rebel vikings, who had been raiding Norway from bases on Orkney and Shetland, before raiding the Scottish mainland, Ireland and the Isle of Man. It is now generally believed that any such expedition would have occurred after Rognvald's lifetime. A modern authority on Orcadian history, William P. L. Thomson, comments that the story of the "great voyage is so thoroughly ingrained in popular and scholarly history, both ancient and modern, that it comes as a bit of a shock to realise that it might not be true."
Modern scholars also highlight inconsistencies and improbable claims in the sagas' claims regarding: the relationship between Rognvald and Harald; the names and biographies of Rognvald's immediate family; and, the founding of the earldom of Møre.
Rognvald was the father of Torf-Einarr (d.
The public source identifies “Rognvald Eysteinsson” as 9th century Norse viking and first Jarl of Møre. This brief keeps that definition visible, then builds a research path around Rognvald, Eysteinsson and century.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Rognvald Eysteinsson”, the useful work is to connect “9th century Norse viking and first Jarl of Møre” to the records capable of establishing context and consequence.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jun 8, 2026. The linked authority identifier is Q1367604. None of the 2 selected statements returned an explicit reference.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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 “Rognvald Eysteinsson”, its source revision and the description used here.
- Expand the search: follow Rognvald Eysteinsson primary sources, Rognvald Eysteinsson archive and Rognvald 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 “Rognvald Eysteinsson”?
- Which cited source is closest to the event, object or claim?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Rognvald Eysteinsson” 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.