Koga Domain

{{Infobox former subdivision |_noautocat = |native_name = 古河藩 |conventional_long_name = Koga Domain |common_name = Koga Domain |subdivision = [[Han system|Han]] |nation = |status_text = under Tokugawa shogunate Japan |government_type = Daimyō  |capital = [[Koga Castle]] |coordinates = |political_subdiv =  |today = part of [[Ibaraki Prefecture]]   |year_start = 1590 |year_end = 1871 |event_start = |date_start =  |event_end =  |date_end =  |event1 =  |date_event1 = |event2 = |date_event2 = |event3 = |date_event3 = |event4 = |date_event4 = |event5 = |date_event5 = |life_span = |era = Edo period |event_pre =  |date_pre = |event_post =  |date_post =  |image_flag =  |image_border =  |flag_type =  |flag =  |image_coat = |symbol_type = |symbol =  |image_map = |image_map_caption =  |stat_year1 =  |stat_area1 =  |stat_pop1 =  |footnotes =  }} [[file:Koga castle kannonjikuruwa dorui.jpg|thumb|right|alt=|Site of Koga Castle, administrative headquarters of Koga Domain]] {{nihongo|'''Koga Domain'''|古河藩|Koga-han}} was a [[Han (Japan)|feudal domain]] under the [[Tokugawa shogunate]] of [[Edo period]] [[Japan]]. It is located in [[Shimōsa Province]], [[Honshū]]. The domain was centered at [[Koga Castle]],<ref>[http://www.japanese-castle-explorer.com/province.html?name=Shimosa "Koga Castle" at JapaneseCastleExplorer.com]; retrieved 2016-12-2.</ref> located in what is the city of [[Koga, Ibaraki|Koga]] in [[Ibaraki Prefecture]].

==History== During the [[Muromachi period]], Koga was the seat of the [[Kantō kubō]], under the [[Ashikaga clan]], who vied with the [[Uesugi clan]] and with the [[Later Hōjō clan]] for control of eastern Japan. [[Ashikaga Ujinohime]] was the last Koga-kubo and owner of Koga domain of the Ashikaga lineage.

When [[Toyotomi Hideyoshi]] defeated the Hōjō at the [[Siege of Odawara (1590)|Siege of Odawara]], the area fell into his hands, and was subsequently assigned (along with the rest of the [[Kantō region]]) to [[Tokugawa Ieyasu]]. Ieyasu assigned Koga Castle to his grandson-in-law, Ogasawara Hidemasa as ''[[daimyō]]'' of Koga Domain, with assessed ''[[kokudaka]]'' of 30,000 ''[[koku]]''.

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 Tokugawa shogunate ordered the domain to provide guards on the foreign settlement at [[Yokohama]]. 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]]) under the ''[[kazoku]]'' peerage system. Koga Domain subsequently became part of [[Ibaraki Prefecture]].

==Bakumatsu period holdings== As with most domains in the [[han system]], Koga Domain consisted of several discontinuous territories calculated to provide the assigned ''[[kokudaka]]'', based on periodic [[cadastral]] surveys and projected agricultural yields.<ref>[[Jeffrey Mass|Mass, Jeffrey P.]] and William B. Hauser. (1987). [https://books.google.com/books?id=Hv99D510nHcC&pg=PA150&dq= ''The Bakufu in Japanese History,'' p. 150].</ref><ref>Elison, George and Bardwell L. Smith (1987). [https://books.google.com/books?id=T2_5_W7UFXwC&pg=PA18&dq= ''Warlords, Artists, & Commoners: Japan in the Sixteenth Century,'' p. 18].</ref> *[[Shimōsa Province]] **27 villages in Katsushika District **2 villages in [[Sashima District, Ibaraki|Sashima District]] *[[Shimotsuke Province]] **13 villages in Samukawa District (entire district) **68 villages in [[Tsuga District, Tochigi|Tsuga District]] **2 villages in [[Aso District, Tochigi|Aso District]] **2 villages in Yanada District **2 villages in [[Ashikaga District, Tochigi|Ashikaga District]] *[[Settsu Province]] **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]] **6 villages in [[Mino District, Hyōgo|Mino District]] **4 villages in [[Katō District, Hyōgo|Katō]] **8 villages in [[Taka District, Hyōgo|Taka District]] **2 villages in Kasai District *[[Mimasaka Province]] **30 villages in Kumenanjo District

==List of ''daimyōs''== * {| class=wikitable ! #||Name || Tenure || Courtesy title || Court Rank || ''[[kokudaka]]'' ||Notes |- |colspan=7|[[File:Mon ogasawara.svg|25px]] '''[[Ogasawara clan]]''' (''[[fudai]]'') 1590–1601 |- ||1||{{nihongo|Ogasawara Hidemasa|小笠原秀政}}||1590–1601||''Hyōbu-daifu'' (兵部大輔) || Lower 5th (従五位下) ||30,000 ''koku''||transfer to Iida Domain |- |colspan=7|[[File:Mon Toda sechs Sterne.svg|25px]] '''[[Toda clan|Toda-Matsudaira clan]]''' (''fudai'') 1602–1612 |- ||1||{{nihongo|Matsudaira Yasunaga|松平康長}} ||1602–1612||''Tamba-no-kami'' (丹波守) || Lower 4th (従四位下) ||20,000 ''koku''|| transfer to Kasama Domain |- |colspan=7|[[File:Mon ogasawara.svg|25px]] '''[[Ogasawara clan]]''' (''fudai'') 1612–1619 |- ||1||{{nihongo|Ogasawara Nobuyuki|小笠原信之}}||1612–1614||''Saemon-no-suke'' (左衛門佐) || Lower 5th (従五位下) ||20,000 ''koku''|| transfer from Honjo Domain |- ||2||{{nihongo|Ogasawara Masanobu|小笠原政信}}||1614–1619||''Saemon-no-suke'' (左衛門佐) || Lower 5th (従五位下) ||20,000 ''koku''|| transfer to Sekiyado Domain |- |colspan=7|[[File:Japanese Crest Okudaira Uchiwa.svg|25px]] '''[[Okudaira clan]]''' (''fudai'') 1619–1622 |- ||1||{{nihongo|Okudaira Tadamasa]|奥平忠昌}} ||1619–1622||''Mimasaka-no-kami'' (美作守)|| Lower 4th (従四位下) ||110,000 ''koku''|| transfer to Utsunomiya Domain |- |colspan=7|[[File:Japanese Crest Nagato mitu Hosi.svg|25px]] '''[[Nagai clan]]''' (''fudai'') 1622–1633 |- ||1||{{nihongo|[[Nagai Naokatsu]]|永井直勝}}||1622–1625||''Ukon-no-daifu'' (右近大夫) || Lower 5th (従五位下) ||72,000 ''koku''|| transfer from Kasama Domain |- ||2||{{nihongo|[[Nagai Naomasa]]|永井尚政}}||1626–1633||''Shinano-no-kami'' (信濃守) || Lower 5th (従五位下) ||72,000 ''koku''|| transfer to Yodo Domain |- |colspan=7|[[File:Japanese Crest mutu Suisha.svg|25px]] '''[[Doi clan]]''' (''fudai'') 1633–1681 |- ||1||{{nihongo|[[Doi Toshikatsu]]|土井利勝}}||1633–1644|| ''Ooi-no-kami'' (大炊頭); ''Jijū'' (侍従) || Lower 4th (従四位下) ||160,000 ''koku''|| from Sakura Domain |- ||2||{{nihongo|Doi Toshitaka|土井利隆}}||1644–1658||''Tōtōmi-no-kami'' (遠江守) || Lower 5th (従五位下) ||160,000→130,000 ''koku''|| |- ||3||{{nihongo|Doi Toshishige | 土井利重}}||1658–1673||''Ooi-no-kami'' (大炊頭) || Lower 5th (従五位下) ||130,000→100,000 ''koku''|| |- ||4||{{nihongo|Doi Toshihisa|土井利久}}||1673–1675||-none- || -none- ||100,000→70,000 ''koku''|| |- ||5||{{nihongo|Doi Toshimasu|土井利益}}||1675–1681||''Suwo-no-kami'' (周防守) || Lower 5th (従五位下) ||70,000 ''koku''|| transfer to Shima Domain |- |colspan=7|[[File:Japanese crest Hotta Mokkou.svg|25px]] '''[[Hotta clan]]''' (''fudai'') 1681–1685 |- ||1||{{nihongo|[[Hotta Masatoshi]]|堀田正俊}} ||1681–1684||''Chikuzen-no-kami'' (筑前守), ''Jijū'' (侍従)|| Lower 4th (従四位下) ||130,000 ''koku''|| transfer from Annaka Domain |- ||2||{{nihongo|[[Hotta Masanaka]]|堀田正仲}} ||1684–1685||''Shimosa-no-kami'' (下総守)|| Lower 4th (従四位下) ||130,000 ''koku''|| transfer to Yamagata Domain |- |colspan=7|[[File:Japanese Crest Maru ni Katabami.svg|25px]] '''[[Matsudaira clan|Matsudaira (Fujii) clan]]''' (''fudai'') 1685–1693 |- ||1||{{nihongo|Matsudaira Nobuyuki|松平信之}}||1685–686||''Hyuga-no-kami'' (日向守) || Lower 5th (従五位下)||90,000 ''koku''|| from Koriyama Domain |- ||2||{{nihongo|Matsudaira Tadayuki|松平忠之}}||1686–1693||''Hyuga-no-kami'' (日向守) || Lower 5th (従五位下)||90,000 ''koku''|| dispossessed |- |colspan=7|[[File:Maru ni Mitsu Ōgi inverted.png|25px]] '''[[Matsudaira clan|Matsudaira (Nagasawa-Ōkōchi) clan]]''' (''fudai'') 1694–1712 |- ||1||{{nihongo|Matsudaira Nobuteru|松平信輝}}||1694–1709||''Izu-no-kami'' (伊豆守) || Lower 5th (従五位下) ||70,000 ''koku''|| from Shima-Toba Domain |- ||2||{{nihongo|[[Matsudaira Nobutoki]] | 松平信祝}}||1709–1712||''Izu-no-kami'' (伊豆守) || Lower 5th (従五位下)||70,000 ''koku''|| to Yoshida Domain |- |colspan=7|[[File:Japanese crest Honda Tachi Aoi.svg|25px]] '''[[Honda clan]]''' (''fudai'') 1712–1759 |- ||1||{{nihongo|Honda Tadanaga|本多忠良}}||1712–1751||''Nakatsukasa-daiyu'' (中務大輔), ''Jijū'' (侍従) || Lower 4th (従四位下) ||50,000 ''koku''|| from Kariya Domain |- ||2||{{nihongo|Honda Tadahisa|本多忠敞}}||1751–1759||''Nakatsukasa-daiyu'' (中務大輔)|| Lower 5th (従五位下) ||50,000 ''koku''|| transfer to Hamada Domain |- |colspan=7|[[File:Japanese crest Tuta.svg|25px]] '''[[Matsudaira clan|Matsudaira (Matsui) clan]]''' (''fudai'') 1759–1762 |- |1||{{nihongo|Matsudaira Mitsuyuki| 松平康福}}||1759–1762||''Suo-no-kami'' (周防守), ''Jijū'' (侍従)|| Lower 4th (従四位下) ||50,000 ''koku''|| transfer to Okazaki Domain |- |colspan=7|[[File:Japanese Crest mutu Suisha.svg|25px]] '''[[Doi clan]]''' (''fudai'') 1762–1871 |- ||1||{{nihongo|[[Doi Toshisato]]|土井利里}}||1762–1777|| ''Ooi-no-kami'' (大炊頭); ''Jijū'' (侍従) || Lower 4th (従四位下) ||70,000 ''koku''|| |- ||2||{{nihongo|Doi Toshichika|土井利見}}||1777–1777||''Mimasaka-no-kami'' (美濃守) || Lower 5th (従五位下) ||70,000 ''koku''|| |- ||3||{{nihongo|Doi Toshiatsu|土井利厚}}||1777–1822|| ''Ooi-no-kami'' (大炊頭); ''Jiju'' (侍従) || Lower 4th (従四位下) ||70,000→80,000 ''koku''|| |- ||4||{{nihongo|[[Doi Toshitsura]]|土井利位}}||1822–1848|| ''Ooi-no-kami'' (大炊頭); ''Jiju'' (侍従) || Lower 4th (従四位下) ||80,000 ''koku''|| |- ||5||{{nihongo|Doi Toshinari|土井利亨}}||1848–1848|| ''Ooi-no-kami'' (大炊頭)|| Lower 5th (従五位下) ||80,000 ''koku''|| |- ||6||{{nihongo|Doi Toshinori|土井利則}}||1848–1867|| ''Ooi-no-kami'' (大炊頭) || Lower 5th (従五位下) ||80,000 ''koku''|| |- ||7||{{nihongo|Doi Toshitomo|土井利与}}||1867–1871|| ''Ooi-no-kami'' (大炊頭)|| Lower 5th (従五位下) ||80,000 ''koku''|| |- |}

==See also== *[[List of Han]]

==References== *''The content of this article was largely derived from that of the corresponding article on Japanese Wikipedia.'' *{{cite book | last = Papinot | first = E | year = 1910 | title = Historical and Geographic Dictionary of Japan | publisher = Tuttle (reprint) 1972 }}

==External links== *{{in lang|ja}} [https://web.archive.org/web/20120128230014/http://www.asahi-net.or.jp/~me4k-skri/han/kantou/koga.html Koga Domain on "Edo 300 HTML"]

==Notes== {{Reflist}}

[[Category:Domains of Japan]] [[Category:History of Ibaraki Prefecture]] [[Category:Shimōsa Province]] [[Category:Fujii-Matsudaira clan]] [[Category:Honda clan]] [[Category:Hotta clan]] [[Category:Matsui-Matsudaira clan]] [[Category:Ogasawara clan]] [[Category:Ōkōchi-Matsudaira clan]] [[Category:Okudaira clan]] [[Category:Toda-Matsudaira clan]] [[Category:Doi clan]] [[Category:Nagai clan]]