The Minamoto clan eventually became the dominant power in the eastern provinces because they were able to frame the Taira as outlaws.

“And as a result of this, I would say by the end of the 11th century, the Minamoto are starting to outmuscle the Tyra. And so now when there is violence in these northeastern provinces, it's the Minamoto who are getting to present themselves as the agents of law and order and to cast the Tyra as the ”