There was a conflict between Katsuie, who backed up the third son of Nobunaga, Nobutaka ODA (who was absent from the conference), and Hideyoshi, who backed up Sanboshi (Hidenobu ODA), the legitimate son of Nobutada, who was the legitimate grandchild of Nobunaga.
信長の3男・織田信孝（欠席）を擁立する勝家と、信長の嫡孫にあたる信忠の嫡男・三法師（織田秀信）を擁立する秀吉との対立がおこった。