Katsura Sanso

...Being located in the western suburbs of Heian-kyo, it was used by the nobility for boating trips and also had villas. Fujiwara no Michinaga's Katsura Villa is particularly famous, and in the early modern period, Katsura Imperial Villa, built by Hachijonomiya Prince Tomohito and Prince Tomotada, was built on the site of Michinaga's mountain villa. The Katsura River has been used as irrigation water since the days of the Hata clan, and it is well known that the 11 districts of Nishioka involved in the Imai irrigation water supply signed a contract and swore to abide by the rules for irrigation water (during the Nanboku-cho period), but disputes have often arisen since then. ...

*Some of the terminology that refers to "Katsura Sanso" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…平安京の西郊であるところから王朝貴族の舟遊びに利用され，別荘も営まれた。ことに藤原道長の桂山荘は著名で，近世初期，八条宮智仁･智忠親王2代にわたって造営された桂離宮は，道長の山荘跡を利用したものである。桂川は秦氏の昔より農業用水として用いられ，なかでも今井用水にかかわる西岡11ヵ郷が契約を結び，用水の掟の順守を誓い合ったこと(南北朝期)はよく知られているが，その後争論もしばしば起こっている。…

※「桂山荘」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報