An obviously Japanese-style posthumous name can be seen as in Shiraka no takehirokunioshiwakayamatoneko no Sumeramikoto of the twenty-second Emperor Seinei (according to "Nihonshoki") but this rather suggests a possibility that Emperor Seinei is a fictional Emperor who was later included in the imperial line (however, there is a theory which proposes that there is a high possibility that Emperor Seinei actually existed because his Japanese-style posthumous name is based on a real name).
22代清寧天皇のシラカタケヒロクニオシワカヤマトネコ（白髪武広国押稚日本根子、『日本書紀』に因る）のように明らかな和風諡号も見られるが、これはむしろ清寧天皇が後に皇統の列に加えられた架空の天皇である可能性を物語っている（ただし、清寧天皇の和風諡号は実名を基にした物であるため、実在した可能性が高い、とする説もある）。