CACrown ArchivesThe cinema collection
Menu
Research dossier · General Reference

Nishio Tadanao

daimyo

Cross-disciplinary reference desk with index cards, atlas, dictionary and catalogue
General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMar 2, 2026
Entity authorityQ11627751 ↗
Source-derived summary

Nishio Tadanao (西尾 忠尚; 1689 – April 25, 1760) was a daimyō in mid-Edo period Japan, who ruled Yokosuka Domain in Tōtōmi Province. He also served as an official within the administration of Tokugawa shogunate, rising through the ranks first as Sōshaban, Jisha-bugyō, Wakadoshiyori, and finally to the position of Rōjū.

Biography

Tadanao was the fourth son of Nishio Tadanari, the first daimyō of the Nishio clan at Yokosuka Domain. He was recognized as heir apparent in 1696 and granted courtesy rank and title of junior 5th court rank, lower grade (ju go i no ge 従五位下), and Harima no Kami in 1703. He became clan leader upon his father's retirement in 1713. In the same year, he received his father's former courtesy title, Oki no Kami.

Tadanao entered the service of the Tokugawa administration in the spring of 1732, with his appointment to the offices of Sōshaban and Jisha-bugyō. After two years in these positions, he was promoted to wakadoshiyori. In 1745, his court rank was raised to junior 4th, lower grade (ju shi i no ge 従四位下), and his domain increased by 5,000 koku to 30,000 koku. The following summer, he was made a rōjū in the service of Shōgun Tokugawa Ieshige, and served in the position until 1747.

Editorial summary

Begin with the source’s own compact description: “Nishio Tadanao” is daimyo. The dossier treats that line as a proposition to test through Nishio, Tadanao and daimyo, not as a finished interpretation.

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—1689, 1760, 1696, 1703—that can be checked directly. The linked authority record independently contributes the date 1689. For this dossier, Nishio, Tadanao and daimyo is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “daimyo” 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.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Mar 2, 2026. The linked authority identifier is Q11627751. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1689, 1760, 1696 and 1703.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. 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

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.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Nishio Tadanao”, its source revision and the description used here.
  2. Expand the search: follow Nishio Tadanao primary sources, Nishio Tadanao archive and Nishio research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Nishio Tadanao”?
  2. Which institution is responsible for the underlying evidence?
  3. Which cited source is closest to the event, object or claim?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Nishio Tadanao” 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.