MINAMOTO no Mitsunaka reported a secret rebellion in 969 and Takaakira suddenly lost his position and was transferred and demoted to Dazai-fu (local government office in Kyushu region) (Anna Incident).
安和2年(969年)、源満仲が謀反の密告をし、とつじょ高明は失脚して大宰府へ左遷されてしまった（安和の変）。