But after his death, his descendants repeatedly clashed with the Muromachi Shogunate in Kyoto until actual conflict finally broke out between the fourth Kubo Mochiuji ASHIKAGA and the sixth shogun Yoshinori ASHIKAGA (Eikyo Incident).
しかし基氏の死後、その子孫は京都の室町幕府将軍家と対立・抗争を繰り返し、遂に第4代公方・足利持氏に至っては第6代将軍・足利義教と衝突する事態に至った（永享の乱）。