Masamoto gained the cooperation of Tomiko and Masanori AKAMATSU, who had begun to feel dissatisfied with Yoshiki, and then pulled off a coup d'etat by making Seiko return to secular life and helping him become the eleventh shogun.
政元は、義材に不満を抱き始めた富子や赤松政則を抱き込み、清晃を還俗させて11代将軍に擁立してクーデターを決行。