Genrō
Genrō (元老; lit. 'original elder') was an unofficial designation given to a generation of elder Japanese statesmen and military officers, all born between the 1830s and 1850s, who served as informal extraconstitutional advisors to the emperor during the Meiji, Taishō, and early Shōwa eras of Japanese history. The institution of genrō originated with the traditional council of elders (Rōjū) common in the Edo period; however, the term genrō appears to have been coined by a newspaper only in 1892.