Kyozan

…It also appears frequently in history as a military stronghold, with the mountain at the foot of the Jiujiang and Hukou, strategic points in the middle reaches of the Yangtze River. It is also known as Mount Kuang and Kuanglu, due to the legend that during the Zhou dynasty, seven brothers of the Kuang family lived in seclusion here and became immortals. Later, Tao Qian (Yuanming) also lived in seclusion here, and it became a home for hermits and Taoists. …

*Some of the terminology explanations that mention "Masayama" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…また長江中流域の要衝である九江，湖口を山下にひかえ，軍事上の拠点としてもしばしば歴史に登場する。周代に匡（きよう）氏の7兄弟がここに廬を結んで隠棲して登仙したという伝説により，匡山･匡廬とも呼ばれる。その後も陶潜(淵明)が隠棲するなど，隠士･道士のすみかともなった。…

※「匡山」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