{{Infobox royalty| name           = Heizei| image           =| caption         =| succession      = Emperor of Japan| reign           = 806–809| coronation      = April 9, 806| cor-type        = Enthronement| predecessor     = کانمو (ایمپیراتور)| successor       = Saga| spouse          = {{plainlist|* Fujiwara no Tarashiko/Taishi* Princess Asahara* Princess Ōyake {{small|(among others)}}}}