According to the book of genealogy "Kansei Shoshu Shakafu," Kunimoto lived in Yoso Yakata built in Yamanobe, Nose County, Settsu Province in 1191 and became the founder of the Nose clan.
『寛政重修諸家譜』によると建久二年(1191年)に摂津国能勢郡山邊の鷹爪館に居住し能勢氏の祖となったという。