Kamizuma Iemune

...They are said to be of the same clan as the Takagi clan and the Kusano clan. According to legend, it began when Takamune, a descendant of Fujiwara Michitaka, lived in Kamizuma County, Chikugo as the governor of Chikugo, but the exact date is that Kamizuma Iemune was given the position of land steward in Kamizuma Manor and Setaka Shimo Manor by the shogunate in the early Kamakura period. This was probably due to his achievement of not siding with the Taira clan, just like the Kusano clan.

*Some of the terminology that refers to "Uezuma Iemune" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…高木氏，草野氏とも同族という。伝承では藤原道隆の子孫隆宗が筑後守として筑後上妻郡に居したのに始まるというが，正確な事跡は鎌倉初期に上妻家宗が幕府より上妻荘･瀬高下荘内の地頭職を与えられた，というのに始まる。草野氏と同じく平家に与同しなかった功によるものであろう。…

※「上妻家宗」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