In 1150, FUJIWARA no Tadazane forcibly entered the Higashi Sanjo-dono Residence, where FUJIWARA no Tadamichi in the kanpaku (main assistant to an emperor) position lived, together with MINAMOTO no Tameyoshi and others, and informed Tadamichi that he would cut the family relationship with Tadamichi and would confiscate the right of becoming Toshi Choja (the chief of the Fujiwara clan) and the Higashi Sanjo-dono Residence.
久安6年（1150年）、藤原忠実は源為義らを引き連れて嫡男である関白藤原忠通が居住する東三条殿に乗り込み、忠通に対して勘当と藤氏長者と東三条殿の没収を通告した。