Komura Jutaro is a diplomat who took charge of diplomatic negotiations concerning the Anglo-Japanese Alliance and the Russo-Japanese War as Foreign Minister of the first Katsura Taro Cabinet. Komura Jutaro became the Japanese plenipotentiary ambassador in the Russo-Japanese Peace Conference (Portsmouth Conference) in Portsmouth in August 1905 (38th year of Meiji). Later, he held the post of the Foreign Minister in the second Katsura Taro Cabinet and materialized the restoration of tariff autonomy by signing the Treaty of Commerce and Navigation between the United States and Japan in 1911 (43rd year of Meiji). He died on November 26, 1911 (44th year of Meiji) at the age of 57.
　The Japan Center for Asian Historical Records retains collection of materials relating to Komura Jutaro.

As for underlined characters in the texts or chronological tables, small type is linked with related materials and bold-faced type is linked with the glossary, respectively.

Year Occurrence
1855 (2nd year of Ansei) Born in current Miyazaki Prefecture.
1893 (26th year of Meiji)

Komura Jutaro was ordered by Foreign Minister Mutsu Munemitsu to work in the legation in Qing, and took office as Charge d'affaires ad interim in Beijing at the end of November.
(Pages 35 to 45, Volume 2 of Japanese pocket edition of "Saka no ue no Kumo")

Title: Articles of the incidents in the Japan-Qing Negotiations
 Reference code: B03030190300
　It includes an outline of the interactions between Japan and Qing regarding the Sino-Japanese War of 1894-1895 and the related documents. The name of Komura Jutaro is described in the inquiry letter from Japan to Qing as shown in the 5th image.
（Diplomatic Archives of the Ministry of Foreign Affairs of Japan）

1896 (29th year of Meiji)） Singed the Russo-Japanese agreement (Komura-Weber Memorandum) aiming at joint control of Korean domestic administration.
901 (34th year of Meiji) Appointed as Foreign Minister of the first Katsura Taro Cabinet.

Signed the Anglo-Japanese Alliance.
(Pages 100 to 101, Volume 3 of Japanese pocket edition of "Saka no ue no Kumo")

Title: From October 16, 1900 to July 30, 1907 (Compilation of miscellaneous documents relating to construction of Manchuria and Mongolia, Vol. 2)
 Reference code:B02032052300
　t includes the preface to the 1st-3rd Anglo-Japanese Alliance Treaty, the Russo-Japanese agreement, the Root-Takahira Agreement, etc.
（Diplomatic Archives of the Ministry of Foreign Affairs of Japan）

1905 (38th year of Meiji)

Komura Jutaro participated as Minister plenipotentiary in the Russo-Japanese Peace Conference (Portsmouth Conference) in Portsmouth, New Hampshire, United States of America from August 10.

Title: Issuing full power of attorney to conclude peace treaty between Japan and Russia
 Reference code: A01200227100
　This is the memorandum for issuing the full power of attorney in nominating foreign Minister Komura Jutaro and Minister to U.S.A. Takahira Kogoro as plenipotentiaries for the Russo-Japanese Peace Conference.
(Source: National Archives of Japan (NAJ))

September 5:Signed the Russo-Japanese Peace Treaty.調印

Title: The script signed by the Emperor, the Peace Treaty between Japan and Russia and additional provisions.
 Reference code: A03020652300
　This is the original script of the Russo-Japanese Peace Treaty (Portsmouth Treaty) ratified by Emperor Meiji. The 2nd image contains the name of Komura Jutaro dispatched to Portsmouth as plenipotentiary representative and the name of Takahira Kogoro, Minister to U.S.A. The signature date of August 23 in the 12th image is the date in the Russian calendar (Julius calendar). The date in Gregorian calendar is September 5, adding 13 days.
(Source: National Archives of Japan (NAJ))

1911 (44th year of Meiji) Died (at the age of 57).