Ashikaga Shigeuji

Japanese: 足利成氏 - あしかがしげうじ

[Born] Eikyo 6 (1434)
Died: September 30, 1497. Military commander during the Koga-Muromachi period. Koga kubō (1455-97). Son of Kamakura kubō Mochiuji. Childhood name: Eijuō. When Mochiuji was defeated in the Eikyo Rebellion in February 1439 and committed suicide in Kamakura, he was protected by the monk Shōzai of Zuisen-ji Temple, and later sought refuge with Oi Mochimitsu in Shinano. In March of the following year, he participated in the uprising of his elder brothers Haruo and Yasuo in Yūki, Shimōsa, but the following month the castle fell, and Haruo and Yasuo were killed in Mino. Nariuji was pardoned and lived in Kyoto, but in 1449, Uesugi Fusada, through the advice of the generals of the Kanto region, applied to the Muromachi bakufu to make him Kamakura kubō, so he went east and entered Kamakura in September. He then came of age in November. In February of the same year, he became the commander of the Left Guard, Junior Fourth Rank. Shigeuji hated Uesugi Norizane and Noritada, the father and son who had defeated and killed his father, Mochiuji. Although he once made peace with them by obeying the Shogunate's orders, in December of the third year of the Kyotoku era (54), he attacked and killed Noritada at his mansion in Kamakura. The Shogunate immediately ordered the pursuit of Shigeuji, and the Kanto region was thrown into great turmoil centered on the conflict between Shigeuji and the Uesugi clan. In January of the first year of the Kosho era (55), Shigeuji marched to Musashino Bubaigawara and defeated Noritada's younger brother, Fusaaki, who had succeeded Noritada as Uesugi clan leader. After that, he attacked the Uesugi generals one after another. However, in June, Kamakura was taken by the army of Imagawa Noritada, the Suruga Shugo, who had been ordered by the Shogunate, and Shigeuji took control of Koga Castle in Shimousa in the first year of the Choroku era (57), and made it his base. The Shogunate also sent Shogun Yoshimasa's younger brother Masatomo to Horikoshi in Izu in an attempt to pacify the Kanto region. It is from this that Masatomo is referred to as the Horikoshi kubō and Shigeuji as the Koga kubō. From this point on, the battle situation remained undecided, and in 1577 a battle broke out between Fusaaki's successor, Akisada, and his vassal, Nagao Kageharu, causing further turmoil in the Kanto region. As a result, both the Shigeuji and the Uesugi clans gradually lost power, and in 1587 Shigeuji made peace with Akisada. Then, in 1591 Shigeuji made peace with the shogunate and Masatomo.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

[生]永享6(1434)
[没]明応6(1497).9.30. 古河
室町時代の武将。古河公方 (1455～97) 。鎌倉公方持氏の子。幼名永寿王。永享 11 (39) 年2月持氏が永享の乱に敗れて鎌倉で自害したとき，瑞泉寺の僧昌在に保護されて，のち信濃の大井持光を頼った。翌年3月兄春王，安王の下総結城 (ゆうき) での挙兵に参加したが，翌月落城，春王，安王は美濃で殺された。成氏は許されて在京していたが，宝徳1 (49) 年上杉房定が関東の諸将にはかり，室町幕府に願って鎌倉公方としたため東下して，9月鎌倉に入った。次いで 11月元服。同3年2月従四位下左兵衛督となる。成氏は，父持氏を敗死させた上杉憲実および憲忠の父子を憎み，一度は幕命を奉じて和睦したものの，享徳3 (54) 年 12月には憲忠を鎌倉の屋形に襲い殺した。幕府はただちに成氏追討を命じ，関東は成氏と上杉氏との対抗を中心に大動乱に陥った。康正1 (55) 年正月成氏は武蔵分倍河原 (ぶばいがわら) に出陣して，憲忠のあと上杉家を継いだ弟の房顕を破り，以後，次々と上杉方の諸将を攻めた。しかし6月になると，幕命を受けた駿河守護今川範忠の軍に鎌倉を奪われ，成氏は長禄1 (57) 年下総古河城を治めて，ここに拠った。幕府はさらに将軍義政の弟政知を伊豆堀越に下し，関東を鎮定させようとした。政知を堀越公方，成氏を古河公方と呼ぶのはここから出た言葉である。これより戦況は一進一退して決定しなかったうえ，文明9 (77) 年には房顕の後嗣顕定とその家臣長尾景春との間に戦いが起り，関東は一層乱れた。かくて成氏，上杉氏とも次第に勢力を失い，同 10年成氏は顕定と和した。次いで同 14年成氏は幕府，政知とも和睦した。

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