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Ancient Diocese of Westminster

lost Roman Catholic Diocese in England, 1540-1550

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 29, 2026
Entity authorityQ5279044 ↗
Source-derived summary

The Diocese of Westminster was a short-lived diocese of the Church of England, extant from 1540 to 1550. Westminster Abbey served as its cathedral.

History

The diocese was one of six founded by Henry VIII in 1539–40, with the churches of dissolved abbeys serving as their cathedrals. The others were Bristol, Chester, Gloucester, Oxford and Peterborough.

It was created from part of the Diocese of London, and comprised Westminster (which was raised to the dignity of a city), and the county of Middlesex, with the exception of Fulham. Fulham was excluded as it was the site of Fulham Palace, residence of the Bishop of London.

Henry established the new diocese by letters patent of 17 December 1540, which reconstituted the former monastery of St Peter, Westminster (today generally known simply as "Westminster Abbey") as a cathedral, with a bishop, dean and twelve canons. Thomas Thirlby was appointed as the bishop and William Benson or Boston, who had been abbot of Westminster before the Dissolution, became dean; the Middlesex archdeaconry moved into the jurisdiction of the new diocese and bishop.

In 1550 the diocese of Westminster was reunited with that of London. Thirlby surrendered the diocese on 30 March and was made Bishop of Norwich, while Nicholas Ridley became Bishop of London and Westminster.

Editorial summary

“Ancient Diocese of Westminster” enters the record as lost Roman Catholic Diocese in England, 1540-1550. Crown Archives preserves that source wording while asking what Ancient, Diocese and Westminster can confirm, complicate or overturn.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1540, 1550, 1539—that can be checked directly. The linked authority record independently contributes the date 1540. Its strongest next move is a source search built around Ancient, Diocese and Westminster.
Editorial analysis

Why this record matters

“Ancient Diocese of Westminster” is worth following because a concise public description often conceals a longer documentary argument. Here, Ancient, Diocese and Westminster provides the most credible route into that argument.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jul 29, 2026. The linked authority identifier is Q5279044. VIAF identifies the subject as 146748377. The Library of Congress control number is n96060234. Authority coordinates are 51.499, -0.128. 2 of 4 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1540, 1550 and 1539.

Critical limits

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

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Source & attribution

This entry incorporates text from “Ancient Diocese of Westminster” 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.