The only records available about these emperors are descriptions about their pedigrees and there are no descriptions of their actual achievements, except for a story about how Emperor Suizei ascended to the throne by crushing the rebellion of Tagishimimi.
系譜などの『帝紀』的記述に止まり、事跡などの『旧辞』的記述がなく、あっても綏靖天皇がタギシミミの反逆を討ち取ったという、綏靖天皇即位の経緯ぐらいしかない。