Yukiie played an active role in passing on to all Genji people in the country Prince Mochihito's order to hunt down and kill the Heike family and raise an army against the Heike clan during the Jisho-Juei War, but after the fall of the Heike clan he entered a conflict with his nephew, MINAMOTO no Yoritomo, as a result of which he was defeated and killed.
行家は治承・寿永の乱の際に以仁王の平家追討の令旨を全国の源氏に伝え挙兵を促すなど活躍したが、平家滅亡後に甥の源頼朝と対立し、敗れ殺害された。