Ancient Diocese of Hamar
1153-1537 extinct diocese of the Roman Catholic Church
The former Norwegian Catholic diocese of Hamar existed from 1152 to 1542, when the Protestant Reformation turned it into a bishopric of the Lutheran state church. The cathedral see was at Hamar, and the diocese included the (modern) counties of Hedmark (except Solør, Odalen and the northern part of Østerdalen), Oppland (except Valdres), and the middle part of Buskerud (the traditional districts Numedal and Ringerike). It also included some parts of Telemark (the modern municipalities of Hjartdal, Notodden, Seljord, Tinn and Vinje).
History
It was formed in 1152 out of the diocese of Oslo, when Arnold, Bishop of Garðar, Greenland (1124–1152), was appointed first Bishop of Hamar. He began to build the now ruined cathedral of Christ Church, which was completed about the time of Bishop Paul (1232–1252).
Bishop Thorfinn (1278–1282) was exiled and died at Ter Doest Cistercian Abbey in Lissewege, Flanders. Bishop Jörund (1285–1286) was transferred to the archdiocese of Trondhjem. A provincial council was held in 1380.
The last Catholic bishop, Mogens Lauritssøn (1513–1537), was taken prisoner in his castle at Hamar by Truid Ulfstand, a Danish noble, and sent to Antvorskov in Denmark, where he was held until his death in 1542. There were at Hamar a cathedral chapter with ten canons, a school, a Dominican Priory of St.
This brief starts where responsible research should: with the source description of “Ancient Diocese of Hamar” as 1153-1537 extinct diocese of the Roman Catholic Church. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as 1153-1537 extinct diocese of the Roman Catholic Church. Its deeper value depends on whether names, dates, institutions and citations support that framing.
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 Sep 3, 2026. The linked authority identifier is Q3708135. Authority coordinates are 60.792, 11.038. None of the 2 selected statements returned an explicit reference. The first chronological checks are 1152, 1542, 1124 and 1232.
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This entry incorporates text from “Ancient Diocese of Hamar” 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.