After the battle in Mt. Hiei, Yoshisada, jointly with his first son, Yoshiaki NITTA, obeyed Imperial Prince Tsuneyoshi, the Prince of the Emperor Godaigo, and was based in Hokkoku.
比叡山での戦いの後、長男の新田義顕と共に後醍醐天皇の皇子・恒良親王を奉じて北国に拠点とした。