In 1433, the remainders of the Shingu clan attacked Tsugawa-jo Castle, Ogawa-no-sho, Echigo Province, but they were beaten back by the Kanakami clan, Jodai (the keeper of castle), and consequently went to ruin.
永享5年(1433年)、新宮氏残党は越後国小川庄津川城を攻めたが、城代・金上氏によって撃退されて滅亡した。