Yokoyama Sakujiro
横山 作次郎
Born 1864, Tokyo
Died
1912-09-23, Japan
Description
Yokoyama Sakujirō was one of the earliest disciples of Kanō Jigorō and one of the Kodokan Shitennō (Four Guardians of the Kodokan). He was known as "Demon Yokoyama" for his violent fighting style and harsh training methods.
Teachers (2)
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Kanō Jigorōsports_martial_artsKōdōkan Jūdō ConfirmedConfirmedWikipedia and Kanō's own memoirs state it.The evidence establishes the claim: it is sufficient and consistent, and any conflicting evidence is resolved.location_onKodokan badge (1886)
fact_checkassessed by FSMverified
3 sources expand_moreFrederico MuñozResearcher, Martialisfact_checkWikipedia and Kanō's own memoirs state it. -
Inoue Keitarosports_martial_artsTenjin Shin'yō-ryū ProbableProbableHistorical records indicate Yokoyama trained in Tenjin Shin'yō-ryū jujutsu before joining Kodokan; specific teacher and dojo mentioned in reliable sources.The evidence favours the claim and nothing credible contradicts it, but it falls short of establishing it.
fact_checkassessed by FSMverified
2 sources expand_moreFrederico MuñozResearcher, Martialisfact_checkHistorical records indicate Yokoyama trained in Tenjin Shin'yō-ryū jujutsu before joining Kodokan; specific teacher and dojo mentioned in reliable sources.
Lineage
- Tenjin Shin'yō-ryūInoue KeitaroIso Masatari Mataemon · 2 generations
Ranks (1)
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military_tech8 dan ProbableProbablePosthumously awarded 8th dan rank; well-documented in Japanese Wikipedia and historical records as one of the highest ranks awarded to early Kodokan practitioners.The evidence favours the claim and nothing credible contradicts it, but it falls short of establishing it.Dan-Kyu System
Students (7)
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Takahashi Kazuyoshisports_martial_artsKōdōkan Jūdō ProbableProbableWell-documented student of Yokoyama Sakujiro at the Kodokan, mentioned in Japanese Wikipedia biography as his direct discipleThe evidence favours the claim and nothing credible contradicts it, but it falls short of establishing it.location_onKodokan badge (1904)
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Satake Soshihirosports_martial_artsKōdōkan Jūdō ProbableProbableStudent of Yokoyama Sakujiro at the Kodokan from 1892, per Japanese Wikipedia; a BJJ blog has him training under Yokoyama with Maeda; not independentThe evidence favours the claim and nothing credible contradicts it, but it falls short of establishing it.location_onKodokan badge (1892)
fact_checkassessed by FSMverified
2 sources expand_moreFrederico MuñozResearcher, Martialisfact_checkStudent of Yokoyama Sakujiro at the Kodokan from 1892, per Japanese Wikipedia; a BJJ blog has him training under Yokoyama with Maeda; not independent -
Mifune Kyūzōsports_martial_artsKōdōkan Jūdō ConfirmedConfirmedIndependent sources state it.The evidence establishes the claim: it is sufficient and consistent, and any conflicting evidence is resolved.location_onKodokan badge (1903)
fact_checkassessed by FSMverified
2 sources expand_moreFrederico MuñozResearcher, Martialisfact_checkIndependent sources state it. -
Maeda Mitsuyosports_martial_artsKōdōkan Jūdō ProbableProbableJA Wikipedia on Yokoyama names Maeda as his student; a BJJ blog that likely draws on it agrees; not independentThe evidence favours the claim and nothing credible contradicts it, but it falls short of establishing it.location_onKodokan badge (1897)
fact_checkassessed by FSMverified
2 sources expand_moreFrederico MuñozResearcher, Martialisfact_checkJA Wikipedia on Yokoyama names Maeda as his student; a BJJ blog that likely draws on it agrees; not independent -
Isogai Hajimesports_martial_artsKōdōkan Jūdō ProbableProbableStudent of Yokoyama Sakujiro at the Kodokan from 1891, per his Wikipedia biography; Wikipedia onlyThe evidence favours the claim and nothing credible contradicts it, but it falls short of establishing it.location_onKodokan badge (1891)
fact_checkassessed by FSMverified
1 source expand_moreFrederico MuñozResearcher, Martialisfact_checkStudent of Yokoyama Sakujiro at the Kodokan from 1891, per his Wikipedia biography; Wikipedia only -
Iizuka Kunisaburōsports_martial_artsKōdōkan Jūdō ProbableProbableDocumented as a student at the Kodokan from 1891, with specific enrollment date recorded in historical recordsThe evidence favours the claim and nothing credible contradicts it, but it falls short of establishing it.location_onKodokan badge (1891)
fact_checkassessed by FSMverified
1 source expand_moreFrederico MuñozResearcher, Martialisfact_checkDocumented as a student at the Kodokan from 1891, with specific enrollment date recorded in historical records“one day he saw a man carrying a judo uniform and followed him to the Kodokan. There he applied for entry, was found acceptable, and signed its enrollment book on November 23, 1891 [...] Sakujiro Yokoyama was head instructor.”
Sources
Identifiers
https://martial.is/entity/01KJJAWN29MA64W22606R3WD7H
Cite and reuse
CC BY-SA 4.0expand_more
Plain text
Muñoz, Frederico (YEAR_PLACEHOLDER). Yokoyama Sakujiro. In Martialis: Martial
Arts Lineage Database. https://martial.is/entity/01KJJAWN29MA64W22606R3WD7H - CC
BY-SA 4.0. Accessed ACCESSED_DATE_PLACEHOLDER.
BibTeX
@incollection{martialis_01KJJAWN29MA64W22606R3WD7H, author = {Muñoz, Frederico},
title = {Yokoyama Sakujiro}, booktitle = {Martialis: Martial Arts Lineage
Database}, year = {YEAR_PLACEHOLDER}, url =
{https://martial.is/entity/01KJJAWN29MA64W22606R3WD7H}, urldate =
{ACCESSED_DATE_PLACEHOLDER}, note = {CC BY-SA 4.0} }
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