Nagaoka Domain

The Fudai Domain had a castle in Nagaoka, Echigo Province (Nagaoka City, Niigata Prefecture) and ruled the surrounding area. In the late Edo period, three lords were appointed as senior councilors. Sadanari, ancestor of the Makino clan, became the lord of Ushikubo Castle in Mikawa in 1529 (Kyoroku 2) and belonged to Imagawa Yoshimoto, but under his eldest son Narisada, he became a vassal of Tokugawa Ieyasu. In 1590 (Tensho 18), when Ieyasu entered the Kanto region, Narisada's son Yasunari (one of the Tokugawa 17 generals) was granted a fief of 20,000 koku in Ogo, Kozuke Province (Ogo-cho, Maebashi City, Gunma Prefecture). In 1616 (Genwa 2), the year after the Summer Siege of Osaka, Yasunari's eldest son, Tadanari, was transferred to Nagamine, Kubiki County, Echigo (present Yoshikawa Ward, Joetsu City) with a fief of 50,000 koku. During construction of his castle, he was transferred again to Nagaoka with a fief of 64,000 koku in 1618. His fief extended to Koshi, Mishima, and Kambara counties. When Fukushima Masanori was abolished in 1619, his wife was the younger sister of Tadanari, who was adopted by Tokugawa Ieyasu, and so in 1620, he was granted an additional 10,000 koku in Tochio-go as support for his wife and children, which eventually grew to over 74,000 koku including the developed land.

After 46 years of establishment by the first lord Tadanari, the third lord Tadatoki's 48-year reign saw the establishment of a domain system. The ninth lord Tadakiyo succeeded to the title at the age of seven, and later joined the shogunate, serving as temple and shrine magistrate and Kyoto shoshidai. He was appointed as a senior councilor twice, mainly during the Kasei period (1804-1830), and was also skilled in the arts and sciences. Tadakiyo's fourth son Tadamasa succeeded him as the tenth lord, and signed the treaty as the second senior councilor when Perry arrived in Japan (1853). During his reign, Niigata-machi, the domain's treasure trove, was ceded to the shogun. The eleventh lord Tadayuki was in charge of foreign affairs as a senior councilor in 1863 (Bunkyu 3), but resigned at the urging of official Kawai Tsuginosuke. His successor, Tadakuni, sought to unite the Imperial Court and the Shogunate during the Boshin War and tried to maintain neutrality, but failed, and Nagaoka Castle fell. After the castle grounds were confiscated, the domain was restored with a stipend of 24,000 koku, but was abolished in 1871 (Meiji 4). After passing through Kashiwazaki Prefecture, it was incorporated into Niigata Prefecture in November of the same year.

[Toshio Kenmochi]

"Nagaoka City History" compiled by Nagaoka City Hall (1931, Hokuetsu Shimposha)" ▽ "The History of Nagaoka" by Shozo Imaizumi (1968, Nojima Publishing)

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

越後(えちご)国長岡（新潟県長岡市）に城を置き周辺を領有した譜代(ふだい)藩。江戸後期、3人の藩主が老中に任じられた。領主牧野(まきの)氏の祖貞成(さだなり)は1529年（享禄2）三河牛久保の城主となり、今川義元(よしもと)に属したが、長子成貞(なりさだ)のとき徳川家康に臣従した。1590年（天正18）家康の関東入部に伴い、成貞の子康成(やすなり)（徳川十七将の一）が上州大胡(おおご)（群馬県前橋市大胡町）2万石に封じられた。大坂夏の陣の翌1616年（元和2）康成の長子忠成(ただなり)は越後頸城(くびき)郡長峰(ながみね)（現、上越(じょうえつ)市吉川(よしかわ)区）5万石に移封、居城の構営中、1618年に再転して長岡6万4000石に封じられた。所領は古志(こし)、三島(さんとう)、蒲原(かんばら)郡にわたった。1619年の福島正則(まさのり)の改易に際し、その妻が徳川家康の養女・忠成の実妹であったので、1620年、妻子の扶助料として栃尾(とちお)郷1万石を加増され、やがて開発地を含めて7万4000石余となった。

　初代忠成の創業46年を経て、3代忠辰(ただとき)の治世48年間に藩制が整備された。9代忠精(ただきよ)は7歳で襲封し、のち幕閣に列し寺社奉行(ぶぎょう)、京都所司代(しょしだい)などを経て、化政(かせい)期（1804～30）を中心に二度老中の座に着き、学芸もよくした。忠精の四子忠雅(ただまさ)が10代を継ぎ、ペリー来航（1853）の際は老中次席として条約に署名した。彼の代に藩の宝庫新潟町が上知(あげち)された。11代忠恭(ただゆき)は1863年（文久3）老中として外交を担当したが、公用人河井継之助(つぎのすけ)の勧めで辞任した。後を継いだ忠訓(ただくに)は戊辰(ぼしん)戦争の際公武合体を念じ、局外中立を守ろうとしたが果たせず、長岡城は陥落した。城地没収後2万4000石で再興されたが、1871年（明治4）廃藩。柏崎(かしわざき)県を経て、同年11月新潟県に編入。

［剣持利夫］

『長岡市役所編『長岡市史』（1931・北越新報社）』▽『今泉省三著『長岡の歴史』（1968・野島出版）』

出典　小学館　日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について　情報 | 凡例