Emperor Go-Daigo's son Prince Morinaga, who also coveted the title of Seii Taishogun, gradually came to rival Takauji, and plotted to assassinate him, but Takauji's security was so tight that he failed to do it.
後醍醐天皇の皇子であり同じく征夷大将軍職を望んでいた護良親王は尊氏と対立し、尊氏暗殺を試みるが尊氏側の警護が厳重で果たせなかった。