{{short description|Japanese feudal domain located in Harima Province}} {{Use dmy dates|date=November 2019}} {{Infobox former subdivision |_noautocat = no |native_name = 赤穂藩 |native_name_lang = ja |conventional_long_name = Akō Domain |common_name = Akō Domain |subdivision = Han |status_text = under Tokugawa shogunate Japan |government_type = Daimyō <!-- General information --> |capital = Akō Castle |coordinates = {{Coord|34|44|44.41|N|134|23|20.34|E|region:JP-28|display=inline}} |political_subdiv = <!-- Accepts wikilinks --> |today = part of Hyogo Prefecture <!-- Rise and fall, events, years and dates --> <!-- Only fill in the start/end event entry if a specific article exists. Don't just say "abolition" or "declaration". --> |year_start = 1615 |year_end = 1871 |event_start = |date_start = |event_end = <!-- Default: "Disestablished" --> |date_end = <!-- Optional: Date of disestablishment --> |event1 = |date_event1 = |event2 = |date_event2 = |event3 = |date_event3 = |event4 = |date_event4 = |event5 = |date_event5 = |event6 = |date_event6 = |life_span = |era = Edo period |event_pre = <!-- Optional: A crucial event that took place before before "event_start" --> |date_pre = |event_post = <!-- Optional: A crucial event that took place before after "event_end" --> |date_post = <!-- Images --> |image_flag = <!-- Default: Flag of {{{common_name}}}.svg --> |image_border = <!-- Default: "border"; for non-rectangular flag, type "no" --> |flag_type = <!-- Displayed text for link under flag. Default "Flag" --> |flag = <!-- Link target under flag image. Default: Flag of {{{common_name}}} --> |image_coat = |symbol_type = |symbol = <!-- Link target under symbol image. Default: Coat of arms of {{{common_name}}} --> |image_map = |image_map_caption = <!-- Area and population of a given year (up to 5) --> |stat_year1 = <!-- year of the statistic, specify either area, population or both, numbered 1–5 --> |stat_area1 = <!-- area in square kilometres (w/o commas or spaces), area in square miles is calculated --> |stat_pop1 = <!-- population (w/o commas or spaces), population density is calculated if area is also given --> |footnotes = <!-- Accepts wikilinks --> }} {{image frame | width = 255 | content = {{Location map|Japan Hyogo Prefecture#Japan |width = |float = |border = |caption = Location of Akō Castle |alt = |relief = 1 |AlternativeMap= |overlay_image = |label = |label_size = |position = |background = |mark = |marksize = |coordinates={{Coord|34|44|44.41|N|134|23|20.34|E|region:JP-28|display=inline}} }} }} right|250px|thumb| Akō Castle right|250px|thumb|Mori Tadanori

{{nihongo|'''Akō Domain'''|赤穂藩| Akō-han}} was a feudal domain under the Tokugawa shogunate of Edo period Japan, located in Harima Province in what is now the southwestern portion of modern-day Hyōgo Prefecture. It was centered around Akō Castle, which is located in what is now the city of Akō, Hyōgo. <ref name="Nakayama">{{cite book |last1=Nakayama |first1=Yoshiaki |title=江戸三百藩大全 全藩藩主変遷表付 |date=2015 |publisher=Kosaido Publishing |isbn= 978-4331802946}}{{in lang|ja}}</ref><ref name="Nigi">{{cite book |last1=Nigi |first1=Kenichi |title=藩と城下町の事典―国別 |date=2004 |publisher=Tokyodo Printing |isbn=978-4490106510}}</ref><ref name="Papinot">{{cite book | last = Papinot | first = E| year = 1910| title = Historical and Geographic Dictionary of Japan | publisher = Tuttle (reprint) 1972 }}</ref>

==History== During the Muromachi period, the area of Akō District was under the control of the Akamatsu clan, the ''shugo'' of Harima Province. In the Sengoku period, it was part of the holdings of Ukita Hideie. During the Battle of Sekigahara, Ukita Hideie sided with the losing Western Army, and his territories were confiscated by the victorious Tokugawa Ieyasu, who awarded the area to his general and son-in-law Ikeda Terumasa. His vast holdings were broken up after his death, and his fifth son, Ikeda Masatsuna received a 35,000 ''koku'' portion which had been assigned as the widow's portion to his mother Tokuhime. This marked the start of Akō Domain. His younger brother, Ikeda Teruoki, inherited the domain in 1631. However, he went insane in 1645, murdering his concubine and several ladies-in-waiting, and was dispossessed.

The domain was awarded to Asano Naganao, formerly of Kasama Domain in Hitachi Province. Nagaoki spend 13 years building Akō Castle on a scale far in excess of his ''kokudaka'' of 53,000 ''koku'' and also reconstructed the castle town. In order to alleviate the financial situation, he expanded on coastal salt production (which had been a speciality of the area since the Yayoi period to support the clan's finances. The third ''daimyō'', Asano Naganori was assigned to provide security for the 1682 Joseon missions to Japan and also had to handle a judicial case involving the assassination of ''Tairō'' Hotta Masatoshi by Inaba Masayasu. However, he is more famously known for being one the principal participants in the famous 1702 Akō Incident, in which he was forced to commit ''seppuku'' after attempting to kill a powerful shogunal named Kira Yoshinaka and was subsequently avenged by his now masterless retainers.

The Asano clan was replaced at Akō Domain by Nagai Naohiro, formerly of Karasuyama Domain in Shimotsuke Province. However, five years later, in 1706, he was transferred to Iiyama Domain in Shinano Province. The domain was then given to Mori Naganao, who had been ''daimyō'' of a 20,000 ''koku'' sub-domain of Tsuyama Domain called "Nishiebara Domain". The Mori clan ruled Akō for 165 years until the end of the Edo period. During the Bakumatsu period, pro-''Sonnō jōi'' samurai murdered the domain's ''karō'' in front of the gate of Akō Castle in 1861. The revolt was suppressed and seven of the 13 perpetrators were executed. In 1871, with the abolition of the han system, Akō Domain became Akō Prefecture, and was incorporated into Hyōgo prefecture via Shikama Prefecture. The Mori family became a viscount (''shishaku'') in the ''kazoku'' peerage system in 1884.

==Holdings at the end of the Edo period== As with most domains in the han system, Ako Domain consisted of several discontinuous territories calculated to provide the assigned ''kokudaka'', based on periodic cadastral surveys and projected agricultural yields.<ref>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>

*Harima Province **42 villages in Ako District

== List of daimyō ==

{| class=wikitable ! #||Name || Tenure || Courtesy title || Court Rank || ''kokudaka'' |- |colspan=6| 25px '''Ikeda clan,''' 1615-1645 (''Tozama'') |- ||1||{{nihongo|Ikeda Masatsuna|池田政綱}}||1615 - 1631||''Ukyō-no-daifu'' (右京大夫)|| Junior 4th Rank, Lower Grade (従四位下)|| 35,000 ''koku'' |- ||2||{{nihongo|Ikeda Teruoki|池田輝興}}||1631 - 1645||''Ukyō-no-daifu'' (右京大夫)|| Junior 4th Rank, Lower Grade (従四位下)|| 35,000 ''koku'' |- |colspan=6| 25px '''Asano clan,''' 1645-1701 (''Tozama'') |- ||1||{{nihongo|Asano Naganao|浅野長直}}||1645 - 1671||''Uchi-no-takumi-no-kami'' (内匠頭)|| Junior 5th Rank, Lower Grade (従五位下)||53,000 ''koku'' |- ||2||{{nihongo|Asano Nagatomo|浅野長友}}||1671 - 1675||''Uneme-no-kami'' (采女正)|| Junior 5th Rank, Lower Grade (従五位下)||53,000 -> 50,000 ''koku'' |- ||3||{{nihongo|Asano Naganori|浅野長矩}}||1675 - 1701||''Uchi-no-takumi-no-kami'' (内匠頭)|| Junior 5th Rank, Lower Grade (従五位下)||50,000 ''koku'' |- |colspan=6| 25px '''Nagai clan,''' 1701-1706 (''Fudai'') |- ||1||{{nihongo|Nagai Naohiro|永井直敬}}||1701 - 1706||''Iga-no-kami'' (伊賀守)|| Junior 5th Rank, Lower Grade (従五位下)||32,000 ''koku'' |- |colspan=6| 25px '''Mori clan,''' 1706-1871 (''Tozama'') |- |1||{{nihongo|Mori Naganao| 森長直}}||1706 - 1722||''Izumi-no-kami'' (和泉守)|| Junior 5th Rank, Lower Grade (従五位下)||20,000 ''koku'' |- ||2||{{nihongo|Mori Nagataka|森長孝}}||1722 - 1723||''Shima-no-kami'' (志摩守)|| Junior 5th Rank, Lower Grade (従五位下)||20,000 ''koku'' |- ||3||{{nihongo|Mori Naganari| 森長生}}||1723 - 1731||''Etchū-no-kami'' (越中守)|| Junior 5th Rank, Lower Grade (従五位下)|| 20,000 ''koku'' |- ||4||{{nihongo|Mori Masafusa| 森政房}}||1731 - 1746||''Ise-no-kami'' (伊勢守)|| Junior 5th Rank, Lower Grade (従五位下)|| 20,000 ''koku'' |- ||5||{{nihongo|Mori Tadahiro|森忠洪}}||1747 - 1769||''Izumi-no-kami'' (和泉守)|| Junior 5th Rank, Lower Grade (従五位下)||20,000 ''koku'' |- ||6||{{nihongo|Mori Tadaoki| 森忠興}}||1769 - 1780||''Yamashiro-no-kami'' (山城守)|| Junior 5th Rank, Lower Grade (従五位下)||20,000 ''koku'' |- ||7||{{nihongo|Mori Tadasuke| 森忠賛}}||1780 - 1801||''Uhyoe-no-suke'' (右兵衛佐)|| Junior 5th Rank, Lower Grade (従五位下)|| 20,000 ''koku'' |- ||8||{{nihongo|Mori Tadaakira| 森忠哲}}||1801 - 1807||''Izumi-no-kami'' (和泉守)|| Junior 5th Rank, Lower Grade (従五位下)||20,000 ''koku'' |- ||9||{{nihongo|Mori Tadayoshi| 森忠敬}}||1807 - 1824||''Etchū-no-kami'' (越中守)|| Junior 5th Rank, Lower Grade (従五位下)|| 20,000 ''koku'' |- ||10||{{nihongo|Mori Tadatsura| 森忠貫}}||1824 - 1827|| -none- || -none- || 20,000 ''koku'' |- ||10||{{nihongo|Mori Tadanori| 森忠徳}}||1827 - 1862||''Etchū-no-kami'' (越中守)|| Junior 5th Rank, Lower Grade (従五位下)|| 20,000 ''koku'' |- ||11||{{nihongo|Mori Tadatsune| 森忠典}}||1862 - 1868||''Mimasaka-no-kami'' (美作守)|| Junior 5th Rank, Lower Grade (従五位下)|| 20,000 ''koku'' |- ||12||{{nihongo|Mori Tadanori| 森忠儀}}||1868 - 1871||''Mimasaka-no-kami'' (美作守)|| Junior 5th Rank, Lower Grade (従五位下)|| 20,000 ''koku'' |- |}

== See also == * List of Han * Abolition of the han system

==Further reading== * Bolitho, Harold. (1974). ''Treasures Among Men: The Fudai Daimyo in Tokugawa Japan.'' New Haven: Yale University Press. {{ISBN|978-0-300-01655-0}}; [https://www.worldcat.org/oclc/185685588 OCLC 185685588]

==References== {{reflist}}

{{Domains of Kinki}} {{Authority control}}

Category:Domains of Japan Category:1615 establishments in Japan Category:States and territories established in 1615 Category:1871 disestablishments in Japan Category:States and territories disestablished in 1871 Category:Harima Province Category:Domains of Hyōgo Prefecture