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Uesugi clan

Japanese clan

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMar 18, 2026
Entity authorityQ1150058
Source-derived summary

The Uesugi clan (上杉氏, Uesugi-shi, historically also Uyesugi) is a Japanese samurai clan which was at its peak one of the most powerful during the Muromachi and Sengoku periods (14th to 17th centuries). At its height, the clan had three main branches: the Ōgigayatsu, Inukake, and Yamanouchi. Its most well-known member is the warlord Uesugi Kenshin (1530–1578).

During the Edo period, the Uesugi were a tozama or outsider clan, in contrast with the fudai or insider daimyō clans which had been hereditary vassals or allies of the Tokugawa clan.

History

The clan claims descent from the Fujiwara clan, specifically Fujiwara no Yoshikado, who was a daijō-daijin during the 9th century.

Kanjūji Shigefusa was a 13th generation descendant of the clan's great progenitor and the originator of the clan's name. Near the end of the 13th century, he received the Uesugi domain in Tango Province and adopted the name "Uesugi" after arriving and establishing himself there.

Muromachi period

Throughout the Muromachi period, members of the clan were appointed as shugo (provincial governors) and would also regularly hold sway over the post Kantō Kanrei (shogun's deputy in Kantō).

Through their dominance of this position, the clan gained a large amount of power in the Kantō region. In 1449, Kantō Kanrei Ashikaga Shigeuji killed his Uesugi deputy in order to check the family's power.

Editorial summary

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

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1530, 1578, 1449—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Uesugi, clan and Japanese is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “japanese clan” 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

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Mar 18, 2026. The linked authority identifier is Q1150058. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1530, 1578 and 1449.

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

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.

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  2. Expand the search: follow Uesugi clan primary sources, Uesugi clan archive and Uesugi research across catalogues and specialist indexes.
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Source & attribution

This entry incorporates text from Uesugi clan” 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.