was the 8th and final ''

daimyō were powerful Japanese magnates, feudal lords who, from the 10th century to the early Meiji era, Meiji period in the middle 19th century, ruled most of Japan from their vast, hereditary land holdings. They were subordinate to the shogun and n ...

'' of Mutsuura Domain in southern

Musashi Province was a province of Japan, which today comprises Tokyo Metropolis, most of Saitama Prefecture and part of Kanagawa Prefecture. It was sometimes called . The province encompassed Kawasaki and Yokohama. Musashi bordered on Kai, Kōzuke, Sagami, S ...

Honshū , historically called , is the largest and most populous island of Japan. It is located south of Hokkaidō across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyūshū across the Kanmon Straits. The island separa ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

(modern-day

Kanagawa Prefecture is a prefecture of Japan located in the Kantō region of Honshu. Kanagawa Prefecture is the second-most populous prefecture of Japan at 9,221,129 (1 April 2022) and third-densest at . Its geographic area of makes it fifth-smallest. Kana ...

) during the

Bakumatsu period was the final years of the Edo period when the Tokugawa shogunate ended. Between 1853 and 1867, Japan ended its isolationist foreign policy known as and changed from a feudal Tokugawa shogunate to the modern empire of the Meiji govern ...

Biography

Yonekoto Masakoto was the 6th son of the 7th ''

'' of Mutsuura Domain,

Yonekura Masanaga was the 7th ''daimyō'' of Mutsuura Domain in southern Musashi Province, Honshū, Japan (modern-day Kanazawa-ku, Yokohama, Kanagawa Prefecture) and 10th head of the Yonekura clan. His courtesy title was '' Tango-no-kami.'' Biography Yonekura M ...

. In May, 1868, he was presented before ''

Shōgun , officially , was the title of the military dictators of Japan during most of the period spanning from 1185 to 1868. Nominally appointed by the Emperor, shoguns were usually the de facto rulers of the country, though during part of the Kamakur ...

Tokugawa Iesada was the 13th ''shōgun'' of the Tokugawa shogunate of Japan. He held office for five years from 1853 to 1858. He was physically weak and was therefore considered by later historians to have been unfit to be ''shōgun''. His reign marks the begin ...

in a formal audience and on June 24, 1860, due to his father's retirement due to illness, became the head of the

Yonekura clan The was a cadet branch of the Takeda clan of Kai Province, some members of whom rose to positions of importance within the administration of the Tokugawa shogunate in mid-Edo period Japan. According to the genealogy of the Takeda clan, Yonekura ...

, and ''daimyō'' of Mutsuura Domain. He served in a number of ceremonial posts within the administration of the

Tokugawa shogunate The Tokugawa shogunate (, Japanese 徳川幕府 ''Tokugawa bakufu''), also known as the , was the military government of Japan during the Edo period from 1603 to 1868. Nussbaum, Louis-Frédéric. (2005)"''Tokugawa-jidai''"in ''Japan Encyclopedia ...

, including guard duty at Osaka Castle, and participated in both the First Chōshū expedition and the

Second Chōshū expedition The Second Chōshū expedition (Japanese: 第二次長州征討), also called the Summer War, was a punitive expedition led by the Tokugawa shogunate against the Chōshū Domain. It followed the First Chōshū expedition of 1864. Background The ...

. In 1867, he was assigned guard duty over the

Yokosuka Naval Arsenal was one of four principal naval shipyards owned and operated by the Imperial Japanese Navy, and was located at Yokosuka, Kanagawa prefecture on Tokyo Bay, south of Yokohama. History In 1866, the Tokugawa shogunate government established the ...

; however in 1868 during the

Boshin War The , sometimes known as the Japanese Revolution or Japanese Civil War, was a civil war in Japan fought from 1868 to 1869 between forces of the ruling Tokugawa shogunate and a clique seeking to seize political power in the name of the Imperi ...

of the

Meiji Restoration The , referred to at the time as the , and also known as the Meiji Renovation, Revolution, Regeneration, Reform, or Renewal, was a political event that restored practical imperial rule to Japan in 1868 under Emperor Meiji. Although there were ...

, he capitulated to the

Satchō Alliance The , or was a powerful military alliance between the feudal domains of Satsuma and Chōshū formed in 1866 to combine their efforts to restore Imperial rule and overthrow the Tokugawa shogunate of Japan. History The name ''Satchō'' () is an ...

forces without a struggle. For this reason, he was confirmed as domain governor of Mutsuura in June 1869. He left public service with the

abolition of the han system The in the Empire of Japan and its replacement by a system of prefectures in 1871 was the culmination of the Meiji Restoration begun in 1868, the starting year of the Meiji period. Under the reform, all daimyos (, ''daimyō'', feudal lords) ...

in July 1871. In 1887, he was ennobled with the title of

viscount A viscount ( , for male) or viscountess (, for female) is a title used in certain European countries for a noble of varying status. In many countries a viscount, and its historical equivalents, was a non-hereditary, administrative or judicial ...

(''shishaku'') under the ''

kazoku The was the hereditary peerage of the Empire of Japan, which existed between 1869 and 1947. They succeeded the feudal lords () and court nobles (), but were abolished with the 1947 constitution. Kazoku ( 華族) should not be confused with ' ...

'' peerage system. Yonekura Masakoto was married to a daughter of

Suwa Tadamichi file:Takashima castle tensyu.JPG, Takashima Castle, administrative centre of Suwa Domain was a Han (Japan), feudal domain under the Tokugawa shogunate of Edo period Japan. It was located in Shinano Province, Honshū. The domain was centered at Ta ...

, ''daimyō'' of the

Suwa Domain Takashima Castle, administrative centre of Suwa Domain was a feudal domain under the Tokugawa shogunate of Edo period Japan. It was located in Shinano Province, Honshū. The domain was centered at Takashima Castle, located in what is now part o ...

Shinano Province or is an old province of Japan that is now Nagano Prefecture. Shinano bordered on Echigo, Etchū, Hida, Kai, Kōzuke, Mikawa, Mino, Musashi, Suruga, and Tōtōmi Provinces. The ancient capital was located near modern-day Matsumoto, whi ...

References

* Papinot, Edmond. (1906) ''Dictionnaire d'histoire et de géographie du japon''. Tokyo: Librarie Sansaish
..Click link for digitized 1906 ''Nobiliaire du japon'' (2003)
* ''The content of much of this article was derived from that of the corresponding article on Japanese Wikipedia.'' Fudai daimyo 1837 births 1909 deaths Masayoshi People of the Boshin War Kazoku People from Tokyo {{daimyo-stub