Which Japanese emperor had the longest tenure?
Michinomiya Hirohito
Hirohito
Hironomiya Naruhito
Hirohito
Hironomiya Naruhito
Tokugawa Ieyasu
Hirohito
Hironomiya Narimasa
Tokugawa Yoshinobu
Hironomiya Naruhiko
Tokugawa Ieyasu
Hironomiya Naruhito
Hironomiya Nobunaga
Toyotomi Hirohito
Hironomiya Hiromoto
Hirohito
Hironomiya Narimasa
Tokugawa Yoshinobu
Tokugawa Ieyasu
Hironomiya Naruhiko
Hironomiya Nobunaga
Hirohito
Emperor Hirohito
Hironomiya Hiromoto
Hironomiya Naruhito
Tokugawa Yoshinobu
Hironomiya Narimasa
Hironomiya Narihira
Hirooki
Tokugawa Ieyasu
Emperor Hirohito
Hironomiya Nobunaga
Hirohito
Hironomiya Hiromoto
Toyotomi Hirohito
Toyotomi Hiromoto
Hironomiya Naruhiko
Tokugawa Yoshinobu
Hironomiya Naruhito
Hironomiya Narihira
Hironomiya Narimasa
Go-Shirakawa Yoshinobu
Tokugawa Ieyasu
Emperor Hirohito
Hirooki
Hirohito
Hironomiya Nobunaga
Hironomiya Hiromoto
Shogun Hirohito
Tokugawa Yoshinobu
Hironomiya Naruhiko
Toyotomi Hirooki
Toyotomi Hiromoto
Taish Hironomiya
Hironomiya Narihira
Tokugawa Hironomiya
Hironomiya Naruhito
Tokugawa Ieyasu
Emperor Hirohito
Hironomiya Narimasa
Hirooki
Tokugawa Hirohito
Toyotomi Hirohito
Hironomiya Naruto
Hirohito
Tokugawa Yoshinobu
Hironomiya Hiromoto
Go-Shirakawa Yoshinobu
Go-Daigo
Hirohito.
Go-Toba Hirohito
Hiro Nobuhide
Shogun Hirohito
Akihito
Emperor Hirohito
Tokugawa Ieyasu
Hironomiya Naruhito
Emperor Meiji
Taish Hironomiya
Hironomiya Narimasa
Go-Shirakawa
Hirooki
Toyotomi Hirooki
Toyotomi Hiromoto
Hironomiya Nobunaga
Hirohito
Tokugawa Yoshinobu
Hironomiya Hiromoto
Hirohito.
Hiro Nobuhide
Emperor Meiji
Akihito
Shogun Hirohito
Jimmu
Emperor Hirohito
Go-Shirakawa Yoshitsune
Go-Shirakawa Yoshinobu
Tokugawa Ieyasu
Hiromoto no Yoritomo
Hirohito
Toyotomi Hirohito
Tokugawa Hirohito
Taish Hironomiya
Tokugawa Yoshinobu
Taish Hirooki
Toyotomi Hiromoto
Hirooki
Go-Shirakawa Yoshimitsu
Emperor Meiji
Go-Toba
Go-Sakuramachi
Michinomiya Nobunaga
Jimmu
Michinomiya Tadakatsu
Go-Shirakawa
Go-Toba Hirohito
Shogun Hiromoto
Emperor Hirohito
Taish Hirohito
Go-Toba Yoritomo
Tokugawa Ieyasu
Michinomiya Yoshinobu
Akihito
Michinomiya Naruhito
Taish Hiromoto
Michinomiya Yoshitsune
Michinomiya Nobuhide
Hiromoto no yoritomo
Hirohito
Yoshinaka Go-Sakuramachi
Emperor Meiji
Yoshinaka Go-Shirakawa
Emperor Hironomiya
Tokugawa Yoshinobu
Shogun Hirohito
Michinomiya Yoshimune
Jimmu
Taish Hironomiya
Hironomiya Naruhito
Takauji Tokugawa Ienari
Taish Hirooki
Michinomiya Nobunaga
Go-Shirakawa Yoshihisa
Hirooki
Michinomiya Tadakatsu
Kangxi Emperor
Emperor Hirohito
Kangxi
Shogun Hiromoto
Michinomiya Yoshinori
Emperor Meiji
Go-Toba
Michinomiya Yoshinobu
Michinomiya Hiromoto
Go-Shirakawa
Jimmu
Tokugawa Ieyasu
Toyotomi Hiromoto
Taish Hiromoto
Hirohito
Akihito
Michinomiya Naruhito
Michinomiya Nobuhide
Tokugawa Yoshinobu
Taish Hirohito
Michinomiya Yoshimune
Go-Shirakawa Yoshinaka
Michinomiya Sadanori
Shogun Hirohito
Taish Hironomiya
Yoshitsune
Yoshitsugu
Kangxi Emperor Tokugawa I
Yoshinaka Go-Daigo
Hirooki
Kangxi Emperor
Taish Hirooki
Kangxi Emperor Tokugawa
Hironomiya Hiromoto
Emperor Meiji
Takauji Tokugawa Ienari
Go-Shirakawa Yoshiaki
Emperor Hirohito
Yoshinobu
Kangxi
Jimmu
Shogun Hiromoto
Michinomiya Nobunaga
Michinomiya Yoshinori
Michinomiya Tadakatsu
Michinomiya Hirohito
Michinomiya Nagakuni
Emperor Jimmu
Michinomiya Hiromoto
Michizane Yoritomo
Taish Hiromoto
Hirohito
Michinomiya Hirooki
Takakura Naruhito
Michizane no samurai
Meiji Emperor