Asayama Kagetsura

Asayama Kagetsura, also called Asayama Jirozaemon-no-jo, was a warrior of the Asayama clan of Izumo Province who served Ashikaga Takauji at the time of the Kenmu Restoration. In 1335 he was appointed shugo of Bingo Province, holding the post until 1338, when Niki Yoshinaga succeeded him.

The Edo-period chronicle Bingo Kojoki records that he built the fort on Koyajima in 1335, the earliest fortification on the later Kannabe Castle site. Takauji granted him estates for his service in Aki. His son Yoshikage later served the Ashikaga shoguns.