Shinobi clan - Oshihan

After Tokugawa Ieyasu entered the Kanto region, the Fudai Domain was established in Shinobu, Musashi Province (Gyoda City, Saitama Prefecture). In 1590 (Tensho 18), Matsudaira Ietada of Fukozu was given 10,000 koku of rice, and towards the end of the Sengoku period, he restored Oshi Castle, which had been the domain of the Narita clan, and made it his castle. In 1592 (Bunroku 1), he was transferred to Kajiro, Shimousa Province (Chiba Prefecture), and then Matsudaira Tadayoshi (Ieyasu's fourth son) was given 100,000 koku of rice, and in 1594, he promoted the development of the domain by repairing the course of the Tone River. After Tadayoshi moved to Kiyosu Castle in Owari (Aichi Prefecture) in 1600 (Keicho 5) after the Battle of Sekigahara, the Oshi territory was given to the castle guards and in 1626 (Kan'ei 3) it became the additional fief of Sakai Tadakatsu of the Fukaya Domain. After that, in 1633, Matsudaira (Okochi) Nobutsuna was given 30,000 koku of land and became the feudal lord, served as a senior councilor, and worked hard to improve the administration of the domain until he was transferred to Kawagoe in 1639. In the same year, Abe Tadaaki was given 50,000 koku of land from Mibu in Shimotsuke (Tochigi Prefecture). Tadaaki was given 10,000 koku of land in 1647 (Shoho 4) and 20,000 koku of land in 1663 (Kanbun 3), bringing his total to 80,000 koku. The Abe clan served as senior councilors for three generations, including Tadaaki, his adopted son Masayoshi, and Masatake. During Masatake's time, the clan's fiefdom was increased to 100,000 koku, and in 1699 (Genroku 12), the fiefdoms of Sagami (Kanagawa Prefecture) and Kozuke (Gunma Prefecture) were transferred to Musashi, and the fiefdoms of Oshi were increased to 60,000 koku, Chichibu, Hachigata, and Kakinoki were increased to 20,000 koku, and Settsu (Osaka Prefecture and Hyogo Prefecture) was increased to 20,000 koku. The following year, Masatake rebuilt Oshi Castle. Masataka was next in line as a senior councilor, followed by Masachika, Masatoshi, Masatsune, Masayori, and Masanori, but in 1823 (Bunsei 6), the domain was transferred to Shirakawa in Mutsu (Fukushima Prefecture), and Matsudaira Tadataka was transferred from Kuwana. The domain's territory was 80,000 koku in Musashi and 20,000 koku in Harima (Hyogo Prefecture), but it was struggling with financial difficulties. Next came Tadasato and Tadakuni, who were responsible for the coastal defense of Kazusa and Awa (Chiba Prefecture), and were succeeded by Tadazane and Tadataka, after which the domains were abolished and prefectures were established, and in July 1871 (Meiji 4), it became Oshi Prefecture, and in November it was incorporated into Saitama Prefecture.

[Odate Uki]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

徳川家康の関東入国以降、武蔵(むさし)国忍（埼玉県行田(ぎょうだ)市）に置かれた譜代(ふだい)藩。1590年（天正18）深溝(ふこうず)松平家忠(いえただ)が1万石で入封し、戦国末期に成田氏の領した忍城を回復し居城としたが、92年（文禄1）下総(しもうさ)国（千葉県）上代(かじろ)に転封、ついで松平忠吉(ただよし)（家康四男）が10万石で入封し、94年利根(とね)川流路の改修により領内の整備を進めた。忠吉が関ヶ原の戦い後、1600年（慶長5）尾張(おわり)（愛知県）清洲(きよす)城に移ると、忍領は城番の配置を経て26年（寛永3）深谷(ふかや)藩酒井忠勝の加増地となった。その後、忍領は1633年松平（大河内(おおこうち)）信綱(のぶつな)が3万石で入封して藩主となり老中も勤め、39年川越転封まで藩政の充実に努力した。同年下野(しもつけ)（栃木県）壬生(みぶ)から阿部忠秋が入封し5万石を領した。忠秋は1647年（正保4）1万石、63年（寛文3）2万石の加増により8万石となる。阿部家は忠秋、養子正能(まさよし)、正武(まさたけ)と3代老中に列した。正武のとき10万石となり、1699年（元禄12）相模(さがみ)（神奈川県）・上野(こうずけ)（群馬県）の所領を武蔵に移され、忍領6万石、秩父(ちちぶ)領・鉢形(はちがた)領・柿木(かきのき)領2万石、摂津（大阪府・兵庫県）2万石の藩領となった。翌年正武は忍城を改築した。ついで正喬(まさたか)が老中につき、以後正允(まさちか)、正敏、正識(まさつね)、正由(まさより)、正権(まさのり)と続いたが、1823年（文政6）陸奥(むつ)（福島県）白河に転封となり、桑名から松平忠堯(ただたか)が入封した。藩領は武蔵8万石、播磨(はりま)（兵庫県）2万石であったが財政難に苦慮した。ついで忠彦(たださと)・忠国のとき上総(かずさ)・安房(あわ)（千葉県）の沿岸防備を負担し、忠誠(ただざね)、忠敬(ただたか)と続いた後、廃藩置県を迎え、1871年（明治4）7月忍県となり、11月には埼玉県に編入された。

［大舘右喜］

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