Inga of Varteig
mother of King Haakon IV of Norway
Inga Olafsdatter of Varteig (Inga Olafsdatter fra Varteig) (Varteig, Østfold, 1183 or c. 1185 – 1234 or 1235) was the mistress of King Haakon III of Norway and the mother of King Haakon IV of Norway.
Biography
Inga, from Varteig in Østfold, maintained a relationship with King Haakon III who visited nearby in Borg (now Sarpsborg) during late 1203. King Haakon subsequently died in early 1204. His reign had been marked by competition between the Bagler and Birkebeiner factions for control of Norway during a period of civil war. King Haakon was succeeded as King of Norway, first by his nephew Guttorm Sigurdsson and later by the appointment of Inge Bardsson.
Shortly after the death of King Haakon, Inga gave birth to a son who she claimed was the child of the recently deceased king. Inga's claim was supported by several of King Haakon's Birkebeiner followers. However, her claim placed both her and her son in a dangerous position. Consequently, a group of Birkebeiner loyalists fled with Inga and her son from Lillehammer in eastern Norway over the mountains during the mid-winter 1205–06.
Begin with the source’s own compact description: “Inga of Varteig” is mother of King Haakon IV of Norway. The dossier treats that line as a proposition to test through Inga, Varteig and mother, not as a finished interpretation.
Why this record matters
The phrase “mother of King Haakon IV of 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.
The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Aug 10, 2026. The linked authority identifier is Q1773738. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1183, 1185, 1234 and 1235.
A concise life account rarely captures disputed attribution, private networks or the changing language used to describe a career. 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.
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Three-step research path
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This entry incorporates text from “Inga of Varteig” 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.