Historical Figures Codexery

Ōyama Iwao

Japanese field marshal and Meiji Restoration leader

Prince Ōyama Iwao (12 November 1842 – 10 December 1916) was a Japanese field marshal and a founder of the Imperial Japanese Army, regarded as one of the leading military commanders of the late modern era.

Born in Kagoshima to a samurai family of the Satsuma Domain, he was a younger paternal cousin of Saigō Takamori. A protégé of Ōkubo Toshimichi, Ōyama worked to overthrow the Tokugawa Shogunate and played a major role in the Meiji Restoration. During the Boshin War, he commanded the Detached First Brigade. At the Battle of Aizu, he led the Satchōdo field artillery on Mount Oda, where he was wounded by an Aizu guerrilla force under Sagawa Kanbei. (Since at least 1904, local accounts have confused him with the engraver Sukeichi Oyama.)

In 1870, Ōyama was sent to study at the École spéciale militaire de Saint-Cyr in France, and served as Japan’s official military observer to the Franco-Prussian War. He spent three years in Geneva learning foreign languages, becoming fluent in Russian, and became the first recorded Japanese customer of Louis Vuitton, buying luggage during his stay. Promoted to major general, he returned to France for further study with Kawakami Sōroku. Back in Japan, he helped build the Imperial Japanese Army, which soon suppressed the Satsuma Rebellion, despite Ōyama and his elder brother being cousins of Saigō Takamori.

In the First Sino-Japanese War, Ōyama commanded the Japanese Second Army. After landing on the Liaodong Peninsula, his forces stormed Port Arthur and later crossed to Shandong to capture the fortress of Weihaiwei. American reporter Trumbull White criticized Ōyama for failing to restrain his troops during the Port Arthur Massacre. For his services, he received the title of marquis under the kazoku peerage system, and in January 1898 became a field marshal. During the Russo-Japanese War (1904–1905), he was Commander-in-Chief of Japanese armies in Manchuria, with complete authority over land operations. He directed tactics in all major battles, winning at Liaoyang and repulsing Russian counter-attacks at Shaho and Sandepu. Illness briefly replaced him with General Kodama Gentarō in early 1905, but he recovered to lead Japanese forces at the final Battle of Mukden. After victory, Emperor Meiji elevated him to prince in September 1907.

As War Minister in several cabinets and Chief of the Army General Staff, Ōyama upheld the autocratic power of the oligarchs against democratic encroachments, though he was reserved and shunned politics unlike Yamagata Aritomo. From 1914 until his death, he served as Lord Keeper of the Privy Seal, attending the accession ceremony of Emperor Taishō in Kyoto in November 1915. In 1906, he received the Order of Merit from King Edward VII, and his Japanese decorations included the Order of the Golden Kite (1st class) and the Order of the Chrysanthemum. He died at age seventy-five in 1916, receiving a state funeral. A large man who enjoyed large meals, his weight exceeded 210 pounds (95 kg), possibly contributing to his death from diabetes.

Ōyama’s first wife Sawa died of puerperal disorder. His second wife Sutematsu, a survivor of the Battle of Aizu and sister of former Aizu retainers, was one of the first female students sent to the United States under the Iwakura Mission. She spent eleven years there, graduating from Vassar College in 1882, and accepted her former enemy’s proposal the following year. In 1901, Emperor Meiji first asked Ōyama to rear the future Emperor Hirohito as a surrogate father, but he declined, and the role went to Count Kawamura Sumiyoshi. Ōyama’s first son Takashi, a navy cadet, died in the accidental explosion of the cruiser *Matsushima* in 1908. His second son Kashiwa became an archaeologist after retiring from the army.

Fluent in several European languages, Ōyama liked European-style architecture. As War Minister, he built a large house in Tokyo modeled on a German castle. Though he was pleased, his wife Sutematsu disliked it and insisted the children’s room be remodeled in Japanese style to preserve their heritage. The house was destroyed by the Great Kantō earthquake in 1923 or by American air raids during World War II.

In 1869, British military band instructor John William Fenton told Japan’s military band about “God Save the King” and stressed the need for a similar national anthem. The band members asked Captain Ōyama, well versed in Japanese and Chinese literature, to select words. He chose the poem that became Japan’s national anthem, *Kimigayo*.

born
12 November 1842, Kagoshima, Japan
died
10 December 1916, Japan
field
Military, Politics
nationality
Japanese
known_for
Founder of the Imperial Japanese Army; Commander-in-Chief in the Russo-Japanese War; selection of the poem for Japan's national anthem Kimigayo

Lore & Background

Ōyama was born in Kagoshima to a samurai family of the Satsuma Domain. He was a younger paternal cousin to Saigo Takamori. A protégé of Ōkubo Toshimichi, he worked to overthrow the Tokugawa Shogunate and played a major role in the Meiji Restoration. He served as commander of the Detached First Brigade during the Boshin War. At the Battle of Aizu, he commanded Satchōdo's field artillery on Mount Oda and was wounded by an Aizu guerrilla force under Sagawa Kanbei. In 1870, he was sent to the École spéciale militaire de Saint-Cyr in France (August 1870 – March 1871) and was appointed official Japanese military observer to the Franco-Prussian War. He spent three years (July 1871 – October 1874) in Geneva studying foreign languages, becoming fluent in Russian. After promotion to major general, he went to France again for further study with Kawakami Sōroku. He helped establish the fledgling Imperial Japanese Army, which was soon employed in suppressing the Satsuma Rebellion. In the First Sino-Japanese War, he was commander-in-chief of the Japanese Second Army, which captured Port Arthur and Weihaiwei. After the war, he was disparaged by American reporter Trumbull White for failing to restrain his troops during the Port Arthur Massacre. He received the title of marquis under the kazoku peerage system, and in January 1898 became a field-marshal. In the Russo-Japanese War, he was Commander-in-Chief of Japanese armies in Manchuria, directing forces in the Battle of Liaoyang, Battle of Shaho, Battle of Sandepu, and Battle of Mukden. He was briefly replaced by General Kodama Gentarō in early 1905 due to illness. After victory, Emperor Meiji elevated him to prince in September 1907. He served as War Minister, Chief of the Army General Staff, and from 1914 to his death as Lord Keeper of the Privy Seal, attending the accession ceremony of Emperor Taishō in November 1915. He was awarded the Order of Merit by King Edward VII in 1906, and Japanese decorations included Order of the Golden Kite (1st class) and Order of the Chrysanthemum. He died at age 75 in 1916 and was accorded a state funeral. His weight exceeded 210 pounds, possibly contributing to his death from diabetes. His first wife Sawa died of puerperal disorder; his second wife Sutematsu, a survivor of the Battle of Aizu and sister of Yamakawa Hiroshi and Yamakawa Kenjirō, was one of the first female students sent to

Reader's Guide

Ōyama Iwao was a Japanese field marshal and a founder of the Imperial Japanese Army, representing the outstanding military commanders of the late modern period. Born in Kagoshima to a samurai family of the Satsuma Domain, he was a younger paternal cousin of Saigo Takamori and a protégé of Ōkubo Toshimichi. He worked to overthrow the Tokugawa Shogunate, playing a major role in the Meiji Restoration, and served as commander of the Detached First Brigade during the Boshin War. At the Battle of Aizu, he commanded Satchōdo’s field artillery on Mount Oda, where he was wounded by an Aizu guerrilla force. He studied at the École spéciale militaire de Saint-Cyr in France and was the official Japanese military observer to the Franco-Prussian War; he also spent three years in Geneva studying languages, becoming fluent in Russian. Ōyama is the first recorded Japanese customer for Louis Vuitton, having purchased luggage during his stay in France. He helped establish the fledgling Imperial Japanese Army, which suppressed the Satsuma Rebellion despite his kinship with Saigō. In the First Sino-Japanese War, he commanded the Japanese Second Army, storming Port Arthur and capturing Weihaiwei, though he was disparaged by an American reporter for failing to restrain his troops during the Port Arthur Massacre. He received the title of marquis under the kazoku peerage system and became a field marshal in 1898. In the Russo-Japanese War, he was Commander-in-Chief of Japanese armies in Manchuria, directing all major battles including Liaoyang, Shaho, Sandepu, and Mukden. After victory, Emperor Meiji elevated him to prince in 1907. As War Minister and Chief of the Army General Staff, he upheld the autocratic power of the oligarchs but shunned politics. He served as Lord Keeper of the Privy Seal from 1914 until his death in 1916 at age seventy-five, receiving a state funeral. A large man who enjoyed large meals, his weight may have contributed to his death, possibly from diabetes. He spoke several European languages and built a house in Tokyo modeled after a German castle. In 1869, he selected the poem that became Japan’s national anthem, Kimigayo.

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