Agahashi-so

…In ancient times, a government road crossed the Shikoku Mountains and led to the Tosa Kokufu, where Agahashi Station was located. At the end of the Heian period, Agahashi Manor, a territory of the Kishu Kumano Shrine, was established here. During the Sengoku period, it was the home base of the Motoyama clan, which was one of the Seven Heroes of Tosa and competed with the Chosokabe clan for supremacy. The ruins of the castle are located at the tip of the ridge of Mt. Tai (818m), which rises to the southwest of the town. …

*Some of the terminology that refers to "Agobashi-so" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…古代，四国山地を越えて土佐国府に向かう官道が通じ，吾椅（あがはし）駅が置かれた。平安時代末期には紀州熊野社領の吾橋荘が設置されている。戦国期には土佐七雄の一に数えられ，長宗我部氏と覇を競った本山氏の本拠地であり，その城跡は町の南西にそびえる田井山(818m)の尾根先端にある。…

※「吾橋荘」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