Harald Bluetooth
King of Denmark and Norway
Harald "Bluetooth" Gormsson (Old Norse: Haraldr Blátǫnn Gormsson; Danish: Harald Blåtand Gormsen, died c. 985/86) was a king of Denmark and Norway.
The son of King Gorm the Old and Thyra Dannebod, Harald ruled as king of Denmark from c. 958 – c. 986, introduced Christianity to Denmark and consolidated his rule over most of Jutland and Zealand. Harald's rule as king of Norway following the assassination of King Harald Greycloak of Norway was more tenuous, most likely lasting for no more than a few years in the 970s. His son Swein Forkbeard forcibly deposed him from his Danish throne shortly before his death.
Name
Harald's name is written as runic haraltr : kunukʀ (ᚼᛅᚱᛅᛚᛏᚱ ᛬ ᚴᚢᚾᚢᚴᛦ) in the Jelling stone inscription. In normalized Old Norse, this would correspond to Haraldr konungr, i.e. "Harald king".
Begin with the source’s own compact description: “Harald Bluetooth” is king of Denmark and Norway. The dossier treats that line as a proposition to test through Harald, Bluetooth and King, not as a finished interpretation.
Why this record matters
The phrase “king of Denmark and Norway” 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.
Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Aug 25, 2026. The linked authority identifier is Q201041. VIAF identifies the subject as 58156009851749580431. The Library of Congress control number is n2006077583. 4 of 6 selected statements include explicit references; 4 carry qualifiers and 0 use preferred rank.
Later biographies can compress uncertainty and repeat inherited reputations, so apparently settled claims may still require comparison. 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
Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.
- Establishing names and roles
- Building a first chronology
- Locating cited institutions
Personal papers, civil or court records, institutional files and the scholarship cited by the source.
Three-step research path
- Establish the record: confirm the title “Harald Bluetooth”, its source revision and the description used here.
- Expand the search: follow Harald Bluetooth primary sources, Harald Bluetooth archive and Harald 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 “Harald Bluetooth”?
- How has the subject’s reputation changed across later accounts?
- Which primary records establish identity, chronology and institutional ties?
Search terms from this dossier
This entry incorporates text from “Harald Bluetooth” 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.