In 1386, the name of Minamoto no Ason (Godaigo Genji, or Minamoto clan in Emperor Godaigo lineage) was bestowed upon him by the Southern Court, and he fought in battles in many places as Seii Taishogun (literally, "great general who subdues the barbarians") and Ukone no daisho (Major Captain of the Right Division of Inner Palace Guards), but in 1424, when he was heading from Kozuke Province to Mikawa Province, he was surrounded by enemies (local clans and samurai who sided with the Northern Court) at Namiai-mura, Shinano Province (present-day Achi-mura, Shimoina-gun, Nagano Prefecture), and committed suicide.
元中3年（1386年）南朝より源朝臣を賜姓（後醍醐源氏）され、征夷大将軍右近衛大将となって各地を転戦するが、応永31年（1424年）上野国から三河国に向かう途中、信濃国浪合村（長野県下伊那郡阿智村）の山麓で敵軍（北朝側の土豪・地侍）に囲まれ、自害したという。