Ōyama Iwao

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Ōyama Iwao
Iwao Oyama 2.jpg
Born (1842-11-12)November 12, 1842
Kajiya-Chō, Kagoshima-Jōka, Satsuma-han, Japan
Died December 10, 1916(1916-12-10) (aged 74)
Tokyo, Japan
Allegiance  Empire of Japan
Service/branch  Imperial Japanese Army
Years of service 1871 - 1914
Rank Field Marshal
Battles/wars Boshin War
Satsuma Rebellion
First Sino-Japanese War
Russo-Japanese War
Awards Collar of the Order of the Chrysanthemum
Grand Cordon of the Order of the Rising Sun with Paulownia Flowers
Order of the Golden Kite (1st class)
Order of Merit
Other work Lord Keeper of the Privy Seal
In this Japanese name, the family name is Ōyama.

Prince Ōyama Iwao, OM (大山 巌?, 12 November 1842 – 10 December 1916) was a Japanese field marshal, and one of the founders of the Imperial Japanese Army.

The community of Oyama, British Columbia, Canada is named after Prince Ōyama Iwao.[1]


Birthplace in Kagoshima

Early life[edit]

Ōyama was born in Kagoshima to a samurai family of the Satsuma Domain. A protégé of Ōkubo Toshimichi, he worked to overthrow the Tokugawa Shogunate and thus played a major role in the Meiji Restoration. He served as the commander of the Detached First Brigade during the Boshin War. At the Battle of Aizu, Ōyama was a commander at the Satchō Alliance's field artillery positions on Mount Oda. During the course of the siege, he was wounded by an Aizu guerilla force under Sagawa Kanbei.

Field Marshal Ōyama during the Russo-Japanese War

Military career[edit]

In 1870, Ōyama was sent overseas to the École Spéciale Militaire de Saint-Cyr in France to study and he was official Japanese military observer to the Franco-Prussian War. He also spent three years (1870–1873) in Geneva studying foreign languages, and became fluent in Russian. Ōyama Iwao is the first recorded Japanese customer for Louis Vuitton, having purchased some luggage during his stay in France. After promotion to major general, he went to France again for further study, together with Kawakami Sōroku.[2] On his return home, he helped establish the fledgling Imperial Japanese Army, which was soon employed in suppressing the Satsuma Rebellion, although Ōyama and his elder brother were cousins of Saigō Takamori.

In the First Sino-Japanese War, Ōyama was appointed the commander-in-chief of the Japanese Second Army, which after landing on Liaotung Peninsula, carried Port Arthur by storm, and subsequently crossed to Shantung, where it captured the fortress of Weihaiwei. After the war, Ōyama was disparaged by American reporter Trumbull White for failing to restrain his troops during the Port Arthur Massacre.[3]

Statue of General Ōyama Iwao at Kudanzaka in Tokyo.

For his services Ōyama received the title of marquis under the kazoku peerage system, and, three years later, he became a field-marshal. In the Russo-Japanese War of 1904-1905 he was appointed the Commander-in-Chief of the Japanese armies in Manchuria. Ōyama has complete authority over all Japanese land operations during the war, and personally directed the tactics of Japanese forces in all major battles, winning the Battle of Liaoyang and repulsing Russian counter-attacks at the Battle of Shaho and the Battle of Sandepu. He was replaced by General Kodama Gentarō briefly during early 1905 due to illness, but recovered to direct Japanese forces in the final Battle of Mukden.[4]

After Japan's victory, Emperor Meiji elevated him to the rank of prince (公爵 kōshaku?),[5] the highest rank of the Empire of Japan.

Political career and death[edit]

As the War Minister in several cabinets and as the Chief of the Army General Staff, Ōyama upheld the autocratic power of the oligarchs (genrō) against democratic encroachments. However, unlike Yamagata Aritomo, Ōyama was reserved and tended to shun politics. From 1914 to his death he served as the Lord Keeper of the Privy Seal.

In 1906, Ōyama was awarded the Order of Merit by King Edward VII. His Japanese decorations included Order of the Golden Kite (1st class) and Order of the Chrysanthemum.

Ōyama died at the age of seventy five in 1916. Ōyama was a large man, and enjoyed large meals. His weight exceeded 210 lbs., and may have contributed to his death, possibly arising from diabetes.

Personal life[edit]

Ōyama Sutematsu at Vassar


Ōyama's first wife Sawa died of puerperal disorder. The second wife Sutematsu (survivor of the Battle of Aizu, sister of former Aizu retainers Yamakawa Hiroshi and Yamakawa Kenjiro) was one of the first female students sent to the United States as part of the Iwakura Mission in the early 1870s. She spent eleven years there, graduating from Vassar College in 1882.[6] In the next year she accepted her once enemy's proposal.

Ōyama was Emperor Meiji's first candidate for rearing future emperor Hirohito as a sort of surrogate father in 1901, in accordance with royal customs, but Ōyama declined and the role instead went to Count Kawamura Sumiyoshi.[7]

Ōyama's first son Takashi, a navy cadet, died in the accidental explosion and sinking of the cruiser Matsushima in 1908.

Site of Ōyama's house at Omotesandō in Tokyo


Ōyama, who spoke and wrote several European languages fluently, also liked European-style architecture. During his tenure as the War Minister, he built a large house in Tokyo modeled after a German castle.

Although he was very pleased with the design, his wife Sutematsu did not like it at all, and insisted that the children's room be remodeled in Japanese style, so that they would not forget their Japanese heritage.[8] The house was destroyed by the Great Kantō earthquake in 1923.


In 1869, the British military band instructor John William Fenton, who was then working in Yokohama as an o-yatoi gaikokujin, told the members of Japan's military band about the British national anthem "God Save the King" and emphasized the necessity of a similar national anthem for Japan. The band members requested artillery Captain Ōyama Iwao, who was well versed in Japanese and Chinese literature, to select appropriate words and Ōyama selected the poem which came to be used in Japan's national anthem kimigayo.


From the Japanese Wikipedia



  • Grand Cross of the Legion of Honour of France
  • Order of Merit (OM) of the United Kingdom (15 May 1906)[9]
  • Namesake of small town in British Columbia Canada. Oyama, British Columbia.

See also[edit]


  1. ^ "Oyama, Lake Country, Okanagan Valley, BC". vancouverisland.com. 1998. Retrieved 2012-04-13. 
  2. ^ Dupuy, Encyclopedia of Military Biography
  3. ^ Trumbull White (1895). The War in the East. J. H. Moore and Company. pp. 597–606. Retrieved 9 August 2011. 
  4. ^ Kowner, Rotem (2006). Historical Dictionary of the Russo-Japanese War. ISBN 0-8108-4927-5: The Scarecrow Press. page 276
  5. ^ National Diet Library, Portraits of Modern Historical Figures
  6. ^ "Prince Iwao Oyama Is Dead in Japan", The New York Times, December 11, 1916.
  7. ^ Bix, Herbert P. (2001). Hirohito and the making of modern Japan (1st Perennial ed.). New York: Perennial. p. 522. ISBN 978-0060931308. 
  8. ^ Adachi, The Wife of Japan’s great General Oyama
  9. ^ The London Gazette, 15 May 1906


External links[edit]

Political offices
Preceded by
Minister of War
Dec 1885 - May 1891
Succeeded by
Takashima Tomonosuke
Preceded by
Takashima Tomonosuke
Minister of War
Aug 1892 - Sept 1896
Succeeded by
Takashima Tomonosuke
Preceded by
Prince Fushimi Sadanaru
Lord Keeper of the Privy Seal
Apr 1915 - Dec 1916
Succeeded by
Matsukata Masayoshi
Military offices
Preceded by
Yamagata Aritomo
Chief of Imperial Japanese Army General Staff
Sept 1882 – Feb 1884
Succeeded by
Yamagata Aritomo
Preceded by
Kawakami Soroku
Chief of Imperial Japanese Army General Staff
Jan 1888 – May 1899
Succeeded by
Yamagata Aritomo
Preceded by
Yamagata Aritomo
Chief of Imperial Japanese Army General Staff
Dec 1905 – Apr 1906
Succeeded by
Kodama Gentarō