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Katō Tomosaburō

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Title: Katō Tomosaburō  
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Subject: List of Japanese prime ministers by longevity, Uchida Kosai, 1923 in Japan, List of Imperial Japanese Navy admirals, Hara Takashi
Collection: 1861 Births, 1923 Deaths, Cancer Deaths in Japan, Deaths from Colorectal Cancer, Imperial Japanese Navy Marshal Admirals, Japanese Military Personnel of the Russo-Japanese War, Kazoku, Ministers of the Navy of Japan, People from Hiroshima, People of Meiji-Period Japan, People of the First Sino-Japanese War, Prime Ministers of Japan, Recipients of the Order of the Chrysanthemum, Recipients of the Order of the Golden Kite, Recipients of the Order of the Rising Sun, Recipients of the Order of the Sacred Treasure
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Katō Tomosaburō

Katō Tomosaburō
加藤 友三郎
12th Prime Minister of Japan
In office
12 June 1922 – 24 August 1923
Monarch Hirohito (Regent)
Preceded by Takahashi Korekiyo
Succeeded by Uchida Kosai (Acting)
Personal details
Born (1861-02-22)22 February 1861
Hiroshima Domain, Aki Province, Japan
Died 24 August 1923(1923-08-24) (aged 62)
Tokyo, Japan
Resting place Aoyama Cemetery, Tokyo
Political party Independent
Alma mater Imperial Japanese Naval Academy
Awards Order of the Chrysanthemum (Grand Cordon)
Military service
Allegiance Empire of Japan
Service/branch Imperial Japanese Navy
Years of service 1873–1923
Rank Marshal Admiral
Commands Combined Fleet
Battles/wars First Sino-Japanese War
Russo-Japanese War
Battle of Tsushima

Marshal-Admiral Viscount Katō Tomosaburō (加藤 友三郎, 22 February 1861 – 24 August 1923[1]) was a career officer in the Imperial Japanese Navy, cabinet minister, and Prime Minister of Japan from 12 June 1922 to 24 August 1923.


  • Biography 1
    • Naval career 1.1
    • As Prime Minister 1.2
  • Honors 2
  • References 3
    • Books 3.1
  • External links 4
  • Notes 5


Born in Hiroshima, Aki Province (modern Hiroshima Prefecture) to a samurai family, Katō enrolled in the 7th class Imperial Japanese Naval Academy and graduated second out of a class of 30 cadets. He specialized in both in naval artillery and in navigation.

Naval career

After his commissioning as lieutenant, Katō served on the corvette Tsukuba in 1887, followed by the cruiser Takachiho. During the First Sino-Japanese War, he served in a combat position as gunnery officer on the cruiser Yoshino. After the end of the war, he served in numerous staff positions before promotion to commander. He was executive officer on the battleship Yashima, and captain of the Tsukushi. He was promoted to rear admiral on 1 September 1904.

During the Russo-Japanese War, Katō served as chief of staff to Admiral Tōgō Heihachirō on the battleship Mikasa, assisting in Japan's victory at the Battle of Tsushima. During this time, he suffered from a very weak stomach, and was vomiting as he issued orders throughout the battle, despite having taken large amounts of medication.

Katō became Vice Minister of the Navy in 1906, and was promoted to vice admiral on 28 August 1908. In 1909, he was appointed commander of the Kure Naval District, and in 1913 became Commander in Chief of the Combined Fleet.

Katō became Minister of the Navy in August 1915, days before his promotion to full admiral on 28 August 1915. He served in this post in the cabinets of Ōkuma Shigenobu, Terauchi Masatake, Hara Takashi, and Takahashi Korekiyo. Under Hara and Takahashi, Katō was Japan's chief commissioner plenipotentiary to the Washington Naval Conference, and worked with Ambassador Shidehara Kijurō in the negotiations that led to the Five-Power Treaty.

As Prime Minister

Following his return to Japan, Katō was appointed 21st Prime Minister of Japan in recognition of his performance at the Washington Naval Conference. His cabinet consisted mainly of bureaucrats and members of the House of Peers, which proved unpopular with the Imperial Japanese Army. During his tenure as prime minister, Katō implemented the provisions of the Washington Naval Agreement, withdrew Japanese forces from Shantung in China and ended Japanese participation in the Siberian Intervention. Katō succumbed to late-stage colon cancer and died a little over a year into his term.

Katō was given the honorary rank of Marshal Admiral the day before his death, and posthumously awarded the Grand Cordon of the Supreme Order of the Chrysanthemum and his title raised to shishaku (viscount).

His death came only a week before the Great Kantō earthquake of 1923, and therefore Japan was without a prime minister during that disaster.

Katō's grave is at Aoyama Cemetery, Tokyo.


From the corresponding article in the Japanese WorldHeritage



  • Agawa, Hiroyuki (2000). The Reluctant Admiral: Yamamoto and the Imperial. Kodansha International.  
  • Dupuy, Trevor N. (1992). Encyclopedia of Military Biography. I B Tauris & Co Ltd.  

External links

  • Nishida, Hiroshi. "Kato Tomosaburo". Imperial Japanese Navy. Retrieved 2007-08-03. 


  1. ^ Nishida, Imperial Japanese Navy
Political offices
Preceded by
Takahashi Korekiyo
Prime Minister of Japan
Jun 1922–Aug 1923
Succeeded by
Yamamoto Gonnohyōe
Preceded by
Yashiro Rokurō
Minister of the Navy
Aug 1915–May 1923
Succeeded by
Takarabe Takeshi
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