@article{oai:rekihaku.repo.nii.ac.jp:00001306,
 author = {羽柴, 直人 and Hashiba, Naoto},
 journal = {国立歴史民俗博物館研究報告, Bulletin of the National Museum of Japanese History},
 month = {Feb},
 note = {application/pdf, 柳之御所遺跡は12世紀奥州藤原氏の拠点平泉の一部分を占める遺跡である。柳之御所遺跡の変遷は6時期に分けられる。1，2期は初代清衡，3，4期は二代基衡，5，6期は三代秀衡の時代に相当する。
1，2期は自然地形を利用した堀で囲まれた施設である。これは11世紀以来の安倍，清原氏の柵，館の系譜を踏襲した施設である。
3期は，堀は機能しているが，堀内部のまとまりが失われる段階である。柳之御所遺跡の重要性が1期，2期に比較すると相対的に低下しているようである。
4期は堀内部に道路が設置される。この道路は堀外部からそのまま連続しており，これは堀の区画，防御の機能を無視した状態で，堀の機能が失われたことを示す。
5期は前代からの中心域が拡大される。これは400尺の長さを基準とした区画で囲まれ，池を有する寝殿造に準拠する構造の施設である。
6期は1～5期まで連続していた中心域が廃され，北側約90mに新たな中心域が造営される。中心域の移動は柳之御所遺跡の性格に根本的な変化が生じたことを示す。
各時期の柳之御所遺跡の性格は，1，2期が政所の用途も兼ね備えた居所であり防御性も備えた施設。3期，4期は藤原氏類族の居所。5期は当主秀衡の居所で宴会儀礼が盛んに行われる場所。6期は政所としての機能の施設と推測される。
柳之御所遺跡は12世紀を通して平泉内において重要地点の一つであったが，その構造，用途は各段階によって変化がみられるのである。, The Yanagino-gosho archaeological site is the remains of part of the Hiraizumi base of the Fujiwara clan in Mutsu Province during the twelfth century. Changes in the Yanagino-gosho site can be divided into six periods. The 1st and 2nd periods correspond to the time of the first generation, Fujiwara-no-Kiyohira, the 3rd and 4th periods to the second generation Fujiwara-no-Motohira, and the 5th and 6th periods to the 3rd generation Fujiwara-no-Hidehira.
During the 1st and 2nd periods the natural topography was used to surround the facility with moats. This facility made use of the stockades and mansions that the Abe and Kiyohara clans had built starting in the eleventh century.
During the 3rd period, although the moats did function the compound inside the moats disappeared. It would seem that compared to the 1st and 2nd periods, the importance of Yanagino-gosho had decreased in relative terms.
During the 4th period, a road was built within the moats. Since the road continued from outside the moat it disregarded the blocking and defensive functions of a moat, which suggests that by this time the moat had lost its function.
During the 5th period, the central area which had been developed during the previous periods expanded. It was enclosed by blocks measuring a standard 400 shaku (1 shaku = 30.3 cm) in length and the structure of the facility is consistent with the Shinden-zukuri style having a main house with a pond.
During the 6th period, the central area that had been continually used during the previous five periods was destroyed, and a new central area was built approximately 90 meters away on the northern side. This re-location of the central area brought about a fundamental change in the character of Yanagino-gosho.
We may conclude that over these six periods Yanagino-gosho assumed the following different characters: during the 1st and 2nd periods it was a facility that combined government offices with a residence and possessed a defensive quality. During the 3rd and 4th periods it was the residence for members of the Fujiwara clan. During the 5th period it was the residence of Hidehira, who was the head of the clan at that time, and was a place where banquets were frequently held. During the 6th period its function was that of a government office.
The Yanagino-gosho site was one of the major sites in Hiraizumi throughout the twelfth century, though its structure and use changed during each of its stages.},
 pages = {219--251},
 title = {柳之御所遺跡の変遷},
 volume = {118},
 year = {2004},
 yomi = {ハシバ, ナオト}
}