Nobutaka was making preparation for conquest of Motochika CHOSOKABE of Shikoku in cooperation with Nagahide, Nobusumi TSUDA, who was a Nobunaga's nephew (his father was Nobuyuki ODA) in Osaka.
信孝は長秀、信長の甥・津田信澄（父は織田信行）らとともに大坂にて四国の長宗我部元親討伐の準備を進めていた。