The Kawachi Hatakeyama clan was an old power, one of Sankanrei (three families in the post of Kanrei) and relatives to the Hosokawa clan, but had been opposed to the Hosokawa clan for long.
河内畠山氏は、細川氏と同族であり、同じく室町幕府三管領のひとつであり、長年細川氏と対立してきた旧勢力であった。