When Nobukatsu sustained a crushing defeat in the attack on Iga carried without Nobunaga's permission, Nobunaga is said to have scolded him harshily in a letter of reprimand, and have even tried to disown him.
信長存命中に無断で行なった伊賀攻めで大敗したとき、信長は譴責状を信雄に送って激しく叱責したばかりではなく、親子の縁を一時は断ち切ろうとまでしたと言われている。