However, there is a view that advocates 'Nobutaka, who knew that not only his father, Nobunaga, but also his elder brother, Nobutada, were killed, killed Nobusumi who might become a candidate for the family head of the Oda clan, by making a false charge.'
しかしながら、「父信長だけでなく兄信忠も死んだ事を知った信孝が、予想される織田氏の家督争いの有力者の一人になる可能性のある信澄を言いがかりをつけて殺害した」とする見方もある。