 Abe no Sadato

Minamoto no Yoriyoshi and his son Yoshiie came to the Abe's northern province of Mutsu to restore power over the province to the Governor; Abe no Yoritoki, Sadato's father, had been acting beyond his station.As a result, the two clans fought for roughly nine years, with some truces, over the course of a total of twelve years from 1051 to 1063.