{"record":{"aliases":["Komura Jutarō","Komura Jutaro"],"appointmentIds":["japan-40a70cd470703b"],"appointmentsDataset":"https://chanceries.org/diplomats.json","archivalSources":[],"canonicalUrl":"https://chanceries.org/diplopedia/people/jutaro-komura-b5092308ef/","countrySlug":"japan","entityId":"https://chanceries.org/diplopedia/people/jutaro-komura-b5092308ef/#person","eventIds":[],"expandedParagraphs":["Jutarō Komura was born in Obi in 1855 and studied at the domain school before receiving a government scholarship to Harvard in 1875. He first worked in the Justice Ministry and as a judge, then moved into the Foreign Ministry’s translation and political departments. Service as vice foreign minister and as minister abroad preceded his rise to foreign minister.","In Washington, Komura explained the practical consequences of Japan’s revised treaties as they took effect in 1899. An interview at the legation described two linked changes: foreign residents would come under Japanese courts, while access to residence and trade would expand beyond the old treaty ports. He presented the change as recognition of Japanese sovereignty.","As foreign minister, Komura promoted the Anglo-Japanese Alliance and led Japan’s delegation to the Portsmouth negotiations in 1905, with Kogorō Takahira as his fellow plenipotentiary. The resulting treaty ended the Russo-Japanese War, recognized Japanese predominance in Korea, and transferred Russian interests in southern Manchuria and southern Sakhalin to Japan under specified conditions.","The settlement required further negotiations with China. In December 1905 Komura and Yasuya Uchida signed the Beijing treaty obtaining Chinese consent to the transfer of Russian leasehold and railway rights. Its accompanying agreement expanded Japanese railway and commercial privileges in Manchuria.","Komura subsequently served as ambassador to Britain and returned to the Foreign Ministry in 1908. In 1911 his ministry completed the treaty revisions that restored Japan’s tariff autonomy. He died in November of that year."],"id":"japan:jutaro komura","identifiers":{},"legacyPersonIds":[],"legacyUrl":"https://chanceries.org/diplomat-b5092308efea2ed8c173.html","name":"Jutarō Komura","notes":[],"paragraphSources":[["komura-ndl"],["komura-treaty-interview"],["komura-mofa","portsmouth-treaty"],["komura-uchida-beijing"],["komura-ndl","komura-mofa"]],"profileUrl":"diplomat-b5092308efea2ed8c173.html","relatedEvents":[{"basis":"reviewed-context","country":"Japan","date":"1905-09-05","description":"Japanese and Russian envoys sign a peace treaty after American mediation. The fighting ends, but the settlement’s terms provoke anger in Japan and extend its power in East Asia.","id":"japan-portsmouth","note":"Komura, Takahira, and Rosen are treaty plenipotentiaries identified in their biographies; Rosen provides the Russian counterpart.","sourceUrls":["https://history.state.gov/historicaldocuments/frus1905/d915","https://history.state.gov/milestones/1899-1913/portsmouth-treaty"],"title":"Peace at Portsmouth","url":"Japan.html#history-japan-portsmouth"}],"relatedPeople":[{"certainty":"documented","name":"Kogorō Takahira","note":"Joint Japanese plenipotentiaries at Portsmouth in 1905.","profileUrl":"diplomat-d3fd0123151a0d770c2b.html","sourceIds":["portsmouth-treaty"],"targetId":"japan:kogoro takahira","type":"co_signatory"},{"certainty":"documented","name":"Kōsai Uchida","note":"Joint Japanese signatories of the December 1905 Beijing treaty.","profileUrl":"diplomat-37b9f34001ab04477943.html","sourceIds":["komura-uchida-beijing"],"targetId":"japan:kosai uchida","type":"co_signatory"}],"relationships":[{"certainty":"documented","note":"Joint Japanese plenipotentiaries at Portsmouth in 1905.","sourceIds":["portsmouth-treaty"],"targetId":"japan:kogoro takahira","type":"co_signatory"},{"certainty":"documented","note":"Joint Japanese signatories of the December 1905 Beijing treaty.","sourceIds":["komura-uchida-beijing"],"targetId":"japan:kosai uchida","type":"co_signatory"}],"researchStatus":"reviewed","reviewedOn":"2026-10-28","revision":"898013111db6864b","sources":[{"accessedOn":"2026-10-28","date":null,"id":"komura-ndl","locator":"Biographical entry","publisher":"National Diet Library","title":"小村寿太郎","type":"official-biography","url":"https://www.ndl.go.jp/portrait/datas/83/"},{"accessedOn":"2026-10-28","date":"1899-08-02","id":"komura-treaty-interview","locator":"Page 2, Washington interview with Minister Komura","publisher":"The Abbeville Press and Banner / University of South Carolina Libraries","title":"The New Era for Japan","type":"contemporary-report","url":"https://historicnewspapers.sc.edu/lccn/sn84026853/1899-08-02/ed-1/seq-2/ocr/"},{"accessedOn":"2026-10-28","date":null,"id":"komura-mofa","locator":"Answer on Komura's diplomatic achievements and records","publisher":"Ministry of Foreign Affairs, Diplomatic Archives","title":"外交史料 Q&A — 小村寿太郎","type":"institutional-history","url":"https://www.mofa.go.jp/mofaj/annai/honsho/shiryo/qa/sonota_02.html"},{"accessedOn":"2026-10-28","date":"1905-12-13","id":"portsmouth-treaty","locator":"FRUS 1905, document 915, treaty articles II, V–VI, IX and plenipotentiaries","publisher":"U.S. Department of State","title":"Ambassador Meyer to the Secretary of State, enclosing the Portsmouth peace treaty","type":"primary-record","url":"https://history.state.gov/historicaldocuments/frus1905/d915"},{"accessedOn":"2026-10-28","date":"1906-01-12","id":"komura-uchida-beijing","locator":"FRUS 1906, part II, document 133; treaty signed December 22, 1905","publisher":"U.S. Department of State","title":"Chargé Wilson to the Secretary of State, enclosing the Japan–China treaty and agreement","type":"primary-record","url":"https://history.state.gov/historicaldocuments/frus1906p2/d133"},{"accessedOn":"","date":"2012-11-19","id":"mission-5a397b8676ad6894559b","locator":"Modern chief names and protocol dates through Kenichiro Sasae; Historical diplomatic representation from 1891; Embassy raised in 1906, wartime interruption, reopening in 1952","publisher":"","title":"Diplomatic Representation for Japan","type":"Mission record","url":"https://2009-2017.state.gov/s/cpr/rls/94066.htm"},{"accessedOn":"","date":"","id":"mission-6d204a16e90e588461c5","locator":"","publisher":"","title":"Jutarō Komura — mission record (1898–1900)","type":"Mission record","url":"https://en.wikipedia.org/wiki/List_of_ambassadors_of_Japan_to_the_United_States"},{"accessedOn":"","date":"","id":"mission-eb9009d314b73c3cf09f","locator":"","publisher":"","title":"Jutarō Komura — mission record (1898–1900)","type":"Mission record","url":"https://history.state.gov/historicaldocuments/frus1902/d718"},{"accessedOn":"","date":"","id":"mission-9f5695c2cae09a0cddf1","locator":"","publisher":"","title":"Jutarō Komura — mission record (1898–1900)","type":"Mission record","url":"https://brill.com/display/book/edcoll/9789004213456/B9789004213456-s012.pdf"}],"topics":["treaty revision","Anglo-Japanese Alliance","Portsmouth peace negotiations","Manchuria"]},"schemaVersion":1}