The Jo clan, who were natives of Echigo province (and thus are known as the Echigo Jo clan), supported the Taira faction during the Jisho-Juei War, and as a result fell upon hard times, until in 1201, Sukemori JO raised a rebel army at Tossaka-jo Castle which was suppressed by the Kamakura shogunate; from that point onwards, the Jo clan never again appeared in the annals of history.
城氏は越後に土着した（越後城氏）が、治承・寿永の乱の際に平氏側へついたため、不遇をかこつこととなり、1201年（建仁1年）、城資盛が鳥坂城で挙兵したが鎌倉幕府に鎮圧され以降城氏(平氏)は歴史上には姿を現さない。