In fact, the Miyoshi clan were relatives of a notable branch of the Kai Genji clan, the Ogasawara clan, which had served as Awa Shugo in the Kamakura period, but in the Muromachi period they were Shugodai who protected the Awa Shugo, the Hosokawa clan.
そもそも、三好氏は甲斐源氏の名流　小笠原氏の傍流にて鎌倉時代は阿波守護をも勤める家柄であったが、室町時代は阿波守護　細川氏を守り立てて守護代の地位にあった。