Nagakiyo Ogasawara - Nagakiyo Ogasawara

A military commander in the Kamakura period. Born on March 5, 1391, at the mansion of Ogasawara-sho (Ogasawara, Minami-Alps City, Yamanashi Prefecture). His childhood name was Toyomatsumaru. His eldest brother Mitsutomo served the Taira clan and Kiso Yoshinaka, but his second son Nagakiyo served Minamoto no Yoritomo along with his father Tomitsu, and became the ancestor of the Ogasawara clan. Tomitsu was appointed governor of Shinano, one of the Kanto provinces, and Nagakiyo also became land steward of Tomono-sho in the same province. He received a tax payment request from Emperor Goshirakawa through Yoritomo for unpaid taxes. During the Jōkyū War (1221), he became the shogun of the Tosando region, and executed the anti-shogunate noble Minamoto Arimasa in Oze village, Inatsumi manor, Kai province, in his territory. In 1216 (Kenpō 4), he established a temple to pray for the soul of the shogun, and passed away on July 15, Ninji 3. His descendants built the foundations of the Ogasawara clan of Shinano, centering on the Banno and Oi manors, and he was also known as a "master of horses." His 6th-generation grandson, Sadamune, founded the Ogasawara school, which served the shogunate as a family art of archery and horse riding.

[Ihara Kesao]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

鎌倉時代の武将。小笠原荘(しょう)（山梨県南アルプス市小笠原）の館(やかた)で応保(おうほう)2年3月5日出生。幼名は豊松丸。長兄光朝(みつとも)は平氏、木曽義仲(きそよしなか)に従ったが、二男長清は父遠光(とおみつ)とともに源頼朝(よりとも)に仕え、小笠原氏の始祖となった。遠光が関東知行国(ちぎょうこく)の一つ信濃(しなの)国司に補(ぶ)され、長清も同国伴野荘(ともののしょう)地頭となり、年貢未済を理由に後白河院(ごしらかわいん)から頼朝を介して年貢催促を受けた。承久(じょうきゅう)の乱（1221）で東山道大将軍となり、反幕公卿(くぎょう)源有雅(ありまさ)を所領甲斐国稲積(いなつみ)荘小瀬村に誅(ちゅう)した。1216年（建保4）頼朝菩提(ぼだい)のため将軍祈願寺を設立、仁治(にんじ)3年7月15日没した。その子孫は、伴野、大井両荘を中心に信濃小笠原氏の基礎を築き、また「馬達者」ともいわれ、6世の孫貞宗(さだむね)は弓馬の道を家芸として将軍家に奉仕する小笠原流を創始した。

［井原今朝男］

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