After Yoritomo was appointed to this post at the Heiji Disturbance, he spent his life as an exile for as long as twenty years (he was deprived of his official post during that time) and defeated the Taira family.
平治の乱の際にこの職に任じられた頼朝は20年に及ぶ流人生活（厳密にはこの期間は官職を剥奪されているが）を経て平家を倒した。