alt=, Site of Koga Castle, administrative headquarters of Koga Domain was a

feudal domain A demesne ( ) or domain was all the land retained and managed by a lord of the manor under the feudal system for his own use, occupation, or support. This distinguished it from land sub-enfeoffed by him to others as sub-tenants. The concept or ...

under 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 ...

Edo period The or is the period between 1603 and 1867 in the history of Japan, when Japan was under the rule of the Tokugawa shogunate and the country's 300 regional '' daimyo''. Emerging from the chaos of the Sengoku period, the Edo period was characteriz ...

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 ...

. It is located in Shimōsa Province,

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 ...

. The domain was centered at

Koga Castle was a Japanese castle located in Koga, Ibaraki Prefecture, Japan. During the Muromachi period, Koga was the seat of the Kantō kubō, under the Ashikaga clan. At the end of the Edo period, Koga Castle was the administrative center of Koga D ...

, located in what is the city of

Koga KOGA is a Dutch bicycle manufacturer based in Heerenveen, Friesland. The company is known for its long time partnership with Japanese frame manufacturer Miyata, producing bicycles and sponsoring racing teams under the brand name Koga Miyata. As ...

Ibaraki Prefecture is a Prefectures of Japan, prefecture of Japan located in the Kantō region of Honshu. Ibaraki Prefecture has a population of 2,871,199 (1 June 2019) and has a geographic area of . Ibaraki Prefecture borders Fukushima Prefecture to the north, ...

History

During the

Muromachi period The is a division of Japanese history running from approximately 1336 to 1573. The period marks the governance of the Muromachi or Ashikaga shogunate (''Muromachi bakufu'' or ''Ashikaga bakufu''), which was officially established in 1338 by t ...

, Koga was the seat of the Kantō kubō, under the Ashikaga clan, who vied with the

Uesugi clan The is a Japanese samurai clan which was at its peak one of the most powerful during the Muromachi and Sengoku periods (14th to 17th centuries). Appert, Georges. (1888) ''Ancien Japon,'' p. 79./ref> At its height, the clan had three main branch ...

and with the Later Hōjō clan for control of eastern Japan.

Ashikaga Ujinohime Ashikaga Ujihime (足利氏姫, 1574 – June 6, 1620), or Ashikaga no Ujihime, Ashikaga Ujinohime was the de facto Koga kubō in Sengoku period. She was the daughter of 5th Koga kubō Ashikaga Yoshiuji and Jōkō-in (a daughter of Hōjō Uji ...

was the last Koga-kubo and owner of Koga domain of the Ashikaga lineage. When

Toyotomi Hideyoshi , otherwise known as and , was a Japanese samurai and ''daimyō'' (feudal lord) of the late Sengoku period regarded as the second "Great Unifier" of Japan.Richard Holmes, The World Atlas of Warfare: Military Innovations that Changed the Cour ...

defeated the Hōjō at the Siege of Odawara, the area fell into his hands, and was subsequently assigned (along with the rest of the

Kantō region The is a geographical area of Honshu, the largest island of Japan. In a common definition, the region includes the Greater Tokyo Area and encompasses seven prefectures: Gunma, Tochigi, Ibaraki, Saitama, Tokyo, Chiba and Kanagawa. Slight ...

) to

Tokugawa Ieyasu was the founder and first ''shōgun'' of the Tokugawa Shogunate of Japan, which ruled Japan from 1603 until the Meiji Restoration in 1868. He was one of the three "Great Unifiers" of Japan, along with his former lord Oda Nobunaga and fellow ...

. Ieyasu assigned Koga Castle to his grandson-in-law, Ogasawara Hidemasa as ''

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 Koga Domain, with assessed ''

kokudaka refers to a system for determining land value for taxation purposes under the Tokugawa shogunate of Edo-period Japan, and expressing this value in terms of ''koku'' of rice. Nussbaum, Louis-Frédéric. (2005)"Koku"in ''Japan Encyclopedia'', p. 54 ...

'' of 30,000 ''

koku The is a Chinese-based Japanese unit of volume. 1 koku is equivalent to 10 or approximately , or about . It converts, in turn, to 100 shō and 1000 gō. One ''gō'' is the volume of the "rice cup", the plastic measuring cup that is supplied ...

''. Afterwards, the domain was reassigned every couple of generations to a large number of '' fudai daimyō'' clans, spending the longest time under the control of the Doi clan (1633–1681, 1762–1871). 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 ...

, the Tokugawa shogunate ordered the domain to provide guards on the foreign settlement at

Yokohama is the second-largest city in Japan by population and the most populous municipality of Japan. It is the capital city and the most populous city in Kanagawa Prefecture, with a 2020 population of 3.8 million. It lies on Tokyo Bay, south of To ...

. However, the domain capitulated almost immediately on the approach of the imperial forces. The final ''daimyō'' of Koga, Doi Toshitomo, served as domain governor until 1871, and was awarded the title of ''shishaku'' (

marquis A marquess (; french: marquis ), es, marqués, pt, marquês. is a nobleman of high hereditary rank in various European peerages and in those of some of their former colonies. The German language equivalent is Markgraf (margrave). A woman wi ...

) 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. Koga Domain subsequently became part of

Bakumatsu period holdings

As with most domains in the

han system ( ja, 藩, "domain") is a Japanese historical term for the estate of a daimyo in the Edo period (1603–1868) and early Meiji period (1868–1912). Nussbaum, Louis-Frédéric. (2005)"Han"in ''Japan Encyclopedia'', p. 283. or (daimyo domain) s ...

, Koga Domain consisted of several discontinuous territories calculated to provide the assigned ''

'', based on periodic cadastral surveys and projected agricultural yields.Elison, George and Bardwell L. Smith (1987)
''Warlords, Artists, & Commoners: Japan in the Sixteenth Century,'' p. 18
* Shimōsa Province **27 villages in Katsushika District **2 villages in Sashima District * Shimotsuke Province **13 villages in Samukawa District (entire district) **68 villages in Tsuga District **2 villages in Aso District **2 villages in Yanada District **2 villages in Ashikaga District *

Settsu Province was a province of Japan, which today comprises the southeastern part of Hyōgo Prefecture and the northern part of Osaka Prefecture. It was also referred to as or . Osaka and Osaka Castle were the main center of the province. Most of Settsu's ...

**5 villages in Nishinari District **4 villages in Sumiyoshi District **9 villages in Shimashimo **5 villages in Yatabe District **2 villages in Ubara District *

Harima Province or Banshū (播州) was a province of Japan in the part of Honshū that is the southwestern part of present-day Hyōgo Prefecture. Harima bordered on Tajima, Tanba, Settsu, Bizen, and Mimasaka Provinces. Its capital was Himeji. During the ...

**6 villages in Mino District **4 villages in Katō **8 villages in Taka District **2 villages in Kasai District * Mimasaka Province **30 villages in Kumenanjo District

List of ''daimyōs''

References

*''The content of this article was largely derived from that of the corresponding article on Japanese Wikipedia.'' *

External links

Koga Domain on "Edo 300 HTML"

Notes