Noriaki Uesugi

A military commander during the Nanboku-cho period. He was the son of Uesugi Norifusa and established the Yamanouchi Uesugi clan. As a cousin of Ashikaga Takauji and Tadayoshi, he played an important role within the Ashikaga clan and played an active role in the Nanboku-cho civil war. In 1336 (Engen 1, Kenmu 3), after his father Norifusa died in battle, he succeeded him as head of the family and became the Minister of the Ministry of Public Affairs and the Shugo of Kozuke. He used this base to campaign in the Echigo and Shimotsuke regions. He also held the position of Shugo of Echigo, and appointed his vassal, the Nagao clan, as Shugodai of Kozuke and Echigo. When the conflict between Ashikaga brothers Takauji and Tadayoshi (the Kanno Disturbance) broke out in 50 (Shohei 5, Kanno 1), he fought bravely as part of the Tadayoshi faction in battles such as the Musashino Battle, but was defeated. After that, he engaged in guerilla-style activities against Takauji for 10 years in the border areas of Shinano, Echigo, and Kozuke. After Takauji's death, Ashikaga Motouji, the Kamakura kubo, expelled the Kanto Kanrei Hatakeyama Kunikiyo in 61 (Shohei 16, Koan 1), and in 63 (Shohei 18, Sadaharu 2), installed Noriaki in his position, restoring him to the position of Shugo of Kozuke and Echigo. From then on, he served Motouji and Ujimitsu, laying the foundations for the Kamakura shogunate. He built Kokusei-ji Temple in Izunagoya (Izunokuni City, Shizuoka Prefecture) and was buried there. His posthumous name was Kokusei-ji Keizan Dosho.

[Minegishi Sumio]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

南北朝時代の武将。上杉憲房(のりふさ)の子で、山内(やまのうち)上杉氏をたてる。足利尊氏(あしかがたかうじ)・直義(ただよし)と従兄弟(いとこ)にあたる関係で、足利氏のなかで重きをなし、南北朝内乱で活躍した。1336年（延元1・建武3）父憲房の戦死後家督を継ぎ、民部大輔(みんぶたいゆう)、上野(こうずけ)守護となり、ここを基盤に越後(えちご)、下野(しもつけ)方面に出動した。越後守護を兼帯し、家臣の長尾(ながお)氏を上野、越後の守護代に据えた。50年（正平5・観応1）に足利尊氏・直義兄弟の争い（観応(かんのう)の擾乱(じょうらん)）が起こると、直義党として武蔵野(むさしの)合戦などに奮闘したが敗北。その後、信濃(しなの)、越後、上野などの国境地帯で10年間、反尊氏方としてゲリラ的活動をしていた。尊氏の死後、鎌倉公方(くぼう)足利基氏(もとうじ)は、61年（正平16・康安1）に関東管領(かんれい)畠山(はたけやま)国清を追放し、63年（正平18・貞治2）憲顕を迎えてその地位に据え、上野、越後の守護に復させた。以来、基氏、氏満(うじみつ)に仕えて鎌倉府の基礎をつくった。伊豆奈古屋(なこや)（静岡県伊豆の国市）に国清寺を建て、ここに葬られた。法名国清寺桂山道昌。

［峰岸純夫］

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