Sadaie Kira

Japanese: 吉良貞家 - きら・さだいえ

Years of birth: Years of birth and death unknown. Military commander during the Northern and Southern Court period. Eldest son of Tsuneie, whose ancestor was Yoshitsugu, a branch of the Kira clan. Kanrei of Oshu. Known to have paid tribute to the Kamakura government in 1334. Later, he went to Kyoto. After the establishment of the Muromachi Shogunate, he is presumed to have been a member of the Hyojoshu and the second head of the Hikitsuke from 1342 (Kenmu 3/Engen 1) to 1342 (Kōei 1/Kōkoku 3). Sadaie can be clearly identified as the head of the Hikitsuke from August 18, 1351 (Ryakuō 3/Kōkoku 1), when he issued a hosho to Todaiji Temple. After that, he issued many hosho for court cases related to his territory under the name of Shuri-no-dayu. In 1361 (Sadawa 1/Kōkoku 6), he went down to Taga Kokufu as Kanrei of Oshu together with Hatakeyama Kuniuji. Prior to this, the Shogunate had ruled both Oshu and Ushu provinces through the Oshu Sodaisho, who was positioned as a military governor. After the 4th year of Kenmu (1320), Ishido Yoshifusa was the supreme commander of Oshu. The system was changed to a kanrei system with governance as its mission. Sadaie was a veteran politician who was close to Ashikaga Tadayoshi, while Kuniuji was a close aide to Takauji. At first, it seemed as if the two men had cooperated and succeeded in stabilizing both Oshu and Uzen. However, when the Kan'o Disturbance broke out, the two men split into Takauji and Tadayoshi factions and began to fight each other. In February of the 6th year of Shohei (1351), Sadaie defeated Kuniuji at Iwakiri Castle, but was defeated by the Southern Court, which had gained strength from the chaos, and was driven out of Taga Castle. However, he recaptured it the following year. His whereabouts after the 9th year of Shohei (1320) are unclear, but it is believed that he died around this time. <References> Ogawa Makoto, "Research on the History of the Development of the Ashikaga Clan Shugo," Endo Iwao, "Oshu Kanrei Obogaki" (Rekishi, No. 38)

(Kiyoshi Ito)

Source: Asahi Japanese Historical Biography: Asahi Shimbun Publications Inc. About Asahi Japanese Historical Biography

Japanese:

生年：生没年不詳
南北朝時代の武将。吉良氏の庶流義継を祖とする経家の長子。奥州管領。建武1(1334)年に鎌倉府に参勤していることが知られている。のち上洛。室町幕府成立後の建武3/延元1年から康永1/興国3(1342)年までは評定衆であり,引付二番の頭人であったと推定されている。貞家が引付の頭人として明確に確認できるのは,暦応3/興国1年8月18日に,東大寺宛に奉書を発しているときからである。その後所領にかかわる裁判の奉書を修理大夫名で多く発給している。貞和1/興国6年畠山国氏と共に奥州管領として多賀国府に下る。これ以前の幕府による奥羽両国の支配は,軍政官として位置付けられる奥州総大将によってなされてきた。建武4/延元2年以後の奥州総大将は石塔義房であった。それを統治を任務とする管領制に組織を変えたのである。貞家は足利直義に親しいベテランの政治家で,一方,国氏は尊氏の側近であった。最初は両者が協力して奥羽両国の安定化に成功したかにみえた。しかし,観応の擾乱が勃発すると,両者は尊氏,直義の両派に分かれて抗争し,観応2/正平6(1351)年2月,貞家は岩切城で国氏を破ったが,この混乱によって力を得た南朝方に敗れ,多賀城を追われた。しかし,翌年にこれを奪還。文和3/正平9年以後の消息は定かでないが,このころ死去したのではないかとみられる。<参考文献>小川信『足利一門守護発展史の研究』,遠藤巌「奥州管領おぼえ書き」(『歴史』38号)

(伊藤喜良)

出典　朝日日本歴史人物事典：（株）朝日新聞出版朝日日本歴史人物事典について　情報

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