While his uncle, Imperial Prince Kaneakira (Prince of Emperor Daigo), was known as 'Saki no Chusho o', Imperial Prince Tomohira was known as 'Nochi no Chusho o'.
叔父の兼明親王（醍醐天皇皇子）が「前中書王」と呼ばれたのに対して、「後中書王」と称された。