*[[Emperor Montoku]] is succeeded by [[Emperor Seiwa]].
*[[Emperor Montoku]] is succeeded by [[Emperor Seiwa]].
−
*[[Fujiwara no Yoshifusa]] becomes ''[[sessho|sesshô]]''. This is the first time someone outside the Imperial family is appointed to the position, and it marks the beginning of a lengthy period of [[Fujiwara clan]] domination of the position.