Tsuyama Domain

This was a domain that ruled the Tsuyama region of Mimasaka Province (Tsuyama City, Okayama Prefecture). In 1603 (Keicho 8), Mori Tadamasa came from Kawanakajima in Shinshu (Nagano Prefecture) to become the lord of Mimasaka Province with a fief of 186,500 koku. Tadamasa entered the country, and the following year built Tsuyama Castle, constructed a castle town, and conducted a national land survey. In 1631 (Kan'ei 8), Tadamasa's grandson Seki Nagatsugu became the second lord of the domain, and implemented city laws, forest land surveys, and county system reforms. In 1674 (Enpo 2), Nagatsugu appointed his second son Nagayoshi as the third lord. In 1686 (Jokyo 3), Nagatsugu's eldest son Tadatsugu's son Naganari grew up and became the fourth lord of the domain. Naganari ordered his elder retainer, Nagao Katsuaki, to compile the Sakuyōshi. In 1695 (Genroku 8), he built a doghouse in Nakano, Edo, by order of the shogunate, and the finances of the domain became extremely poor. In 1697, Naganari died of an illness, and Naganari's uncle, Seki Atsutoshi (the biological son of Nagatsugu), was approved by the shogunate as his successor, but he became mentally unstable on the way to Edo, and the Moritsuyama domain was discontinued (the retired former lord, Nagatsugu, was given 20,000 koku of land in Nishiehara, Bitchu).

In 1698, Matsudaira Naganori (later Nobutomi, Echizen clan) was given 100,000 koku of land in Mimasaka province and entered Tsuyama Castle. Upon entering the province, Naganori strengthened the tax rates in rural areas, which led to a peasant uprising known as the Takakura Disturbance. In 1721 (Kyoho 6), Nobutomi died and was succeeded by 6-year-old Matsudaira Asagoro, but he also died in 1726, causing turmoil throughout the province with the Sanchu Uprising. The shogunate appointed his adopted son Matsudaira Nagahiro as lord of the domain and reduced his territory to 50,000 koku. After that, Nagataka, Yasuchika, Yasuharu, Katsutaka, Naritami, and Yasutomo succeeded him as lord of the domain until the Meiji Restoration. Katsutaka adopted Ginnosuke (Naritami), the son of the 11th shogun, Tokugawa Ienari, in 1817 (Bunka 14), and was given an additional 50,000 koku of rice. Naritami implemented various policies during the Restoration, but political instability at the end of the Edo period and an excessive burden of tribute led to a government uprising in 1866 (Keio 2). The domain was abolished in 1871 (Meiji 4), and the domain was incorporated into Tsuyama Prefecture, then Hojo Prefecture, and in 1876 it was incorporated into Okayama Prefecture.

[Akihiko Hitomi]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

美作(みまさか)国津山（岡山県津山市）地方を領有した藩。1603年（慶長8）信州（長野県）川中島(かわなかじま)から森忠政(ただまさ)が美作一国18万6500石の領主として入封。忠政は入国し、翌年津山城の築城、城下町の建設、国内総検地などを実施した。1631年（寛永8）忠政の外孫関長継(せきながつぐ)が2代藩主となり、市中法度(はっと)、山林検地、郡制の改制などを行った。1674年（延宝2）長継は次子長義(ながよし)に3代藩主を継がせた。1686年（貞享3）長継の長子忠継(ただつぐ)の子長成(ながなり)が成長し、4代藩主となった。長成は家老長尾勝明(ながおかつあき)に命じて『作陽誌』を編纂(へんさん)させた。1695年（元禄8）幕命により江戸中野に犬小屋を建造し、藩財政は極度に窮乏した。97年長成は病死し、嗣子(しし)として長成の叔父関衆利(あつとし)（長継の実子）が幕府の認可を得たが、江戸への道中で精神に異常をきたし、森津山藩は断絶となった（隠居の元藩主長継には備中(びっちゅう)西江原2万石が与えられた）。

　1698年松平長矩(ながのり)（のち宣富(のぶとみ)、越前(えちぜん)家）が美作国のうち10万石を与えられ津山城に入った。長矩は入国と同時に農村の租率を強化したため高倉(たかくら)騒動とよばれる百姓一揆(いっき)にみまわれた。1721年（享保6）宣富が死去し、6歳の松平浅五郎(あさごろう)が封を継いだが、26年に死去し、国中は山中(さんちゅう)一揆により騒然とする。幕府は、養嗣子(ようしし)松平長煕(ながひろ)を藩主とし、領地を5万石に減じた。以後、長孝(ながたか)、康致(やすちか)、康乂(やすはる)、克孝(かつたか)、斉民(なりたみ)、慶倫(やすとも)が藩主を継承し明治維新に至っている。克孝は1817年（文化14）11代将軍徳川家斉(いえなり)の子銀之助(ぎんのすけ)（斉民）を養子としたため、5万石の加増を受けた。慶倫は維新期の諸政策を実施するが、幕末の政情不安と貢担の過重のため、改政一揆が1866年（慶応2）に起こった。71年（明治4）廃藩、津山県、北条県を経て76年岡山県に編入。

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