Apart from the "Chronicles of Japan" and the theory of Mizuno, if any of these theories is correct, Emperor Kinmei would become the third emperor who reigned for the longest time following Emperor Showa and Emperor Meiji between Emperor Keitai and the present Imperial family; some people argue that Emperor Suiko or Emperor Tenmu was the actual first emperor and before these emperors there existed the great King of Yamato; but we will put aside this theory for now.
もし書紀・水野説以外のいずれかが正しければ、欽明天皇は現在の皇室から少なくとも遡れる継体天皇以降の歴代天皇では昭和天皇・明治天皇に次いで長く在位した（推古天皇または天武天皇が事実上の初代天皇で、それ以前はヤマト大王だったのではないかという説は置いて）事になる。