Nitta Manor - Nitta no Sho

This manor was located in Kozuke Province (Gunma Prefecture) and was located on the Omama alluvial fan. Its territory covered almost the entire ancient Nitta County (present-day parts of Ota City, Isesaki City, and Midori City). In 1108 (Tennin 1), Minamoto no Yoshishige developed the southwestern part of Nitta County, which had been devastated by the eruption of Mount Asama. In 1157 (Hogen 2), he donated this to Kongoshin-in Temple, which was built by the retired Emperor Toba, and Nitta Manor was established with Kongoshin-in Temple as the main family, Fujiwara Tadamasa (Kazan-in family) as the lord, and Yoshishige as the subordinate. Later, in 1170 (Kao 2), the territory was expanded to cover the entire Nitta County. After that, it became the foundation of the Nitta clan, descendants of Yoshishige, and produced Nitta Yoshisada during the Nanboku-cho period. The Nitta Manor inventory of 1170 lists 302 cho of paddy fields, 96 cho of farmland, and 248 u of household land. After Nitta Yoshisada's demise, his family, the Nitta Iwamatsu clan, inherited the estate.

[Minegishi Sumio]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

上野(こうずけ)国（群馬県）にあった荘園で、大間々(おおまま)扇状地上に立地し、ほぼ古代の新田郡全体（現在の太田市、伊勢崎市とみどり市の各一部）を荘域とする。1108年（天仁1）浅間山の爆発によって荒廃した新田郡南西部の地を源義重(よししげ)が開発。1157年（保元2）にこれを鳥羽(とば)上皇建立の金剛心院(こんごうしんいん)に寄進し、ここに金剛心院を本家(ほんけ)、藤原忠雅(ただまさ)（花山(かざん)院家）を領家(りょうけ)、義重を下司(げし)とする新田荘が成立した。その後1170年（嘉応2）には荘域は新田郡全体に拡大された。以後、義重の子孫新田一族の基盤となり、南北朝時代に新田義貞(よしさだ)を生み出した。1170年の新田荘目録には、水田302町、畑96町、在家248宇とある。新田義貞の滅亡後は、一族の新田岩松(いわまつ)氏が継承した。

［峰岸純夫］

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