| According to a current system (which is known as 'Isse ichigen no sei' [literally, the practice of assigning one era name to one emperor]), Gengo (an era name) during the Emperor's reign usually becomes that Emperor's posthumous title. |
現在の制度（一世一元の制）に基づけば、在位中の元号をもって追号とされることが定制である。 |