Rōjū
The Rōjū, usually translated as Elder, was one of the highest-ranking government posts under the Tokugawa shogunate of Edo period Japan. The term refers either to individual Elders, or to the Council of Elders as a whole; under the first two shōguns, there were only two Rōjū. The number was then increased to five, and later reduced to four. The Rōjū were usually appointed from the ranks of the fudai daimyōs with domains of between 25,000 and 50,000 koku.
Duties
The Rōjū had a number of responsibilities, most clearly delineated in the 1634 ordinance that reorganized the government and created a number of new posts:The Rōjū served not simultaneously, but in rotation, each serving the Shogun for a month at a time, communicating with the Shogun through a chamberlain, called Soba-yōnin. However, the Rōjū also served as members of the Hyōjōsho council, along with the Ō-Metsuke and representatives of various Bugyō. As part of the Hyōjōsho, the Rōjū sometimes served a role similar to that of a supreme court, deciding succession disputes and other such disputed matters of state and its vassals.
Under the reign of Tokugawa Tsunayoshi the Rōjū lost nearly all their power, as the Shogun began to work more closely with the Tairō, Chamberlains, and others, including Yanagisawa Yoshiyasu, who held the power of a Tairō, but not the title. The Rōjū became little more than messengers, going through the motions of their proper roles as intermediaries between the Shogun and other offices, but not being able to exercise any power to change or decide policy. As Arai Hakuseki, a major Confucian poet and politician of the time wrote, "All the Rōjū did was to pass on his
List of ''Rōjū''
Each office-holder is listed once. Some may have served under multiple shōguns'', and as a result of multiple terms, the list may not fully accurate reflect the order in which the office was held. For example, Hotta Masayoshi served in 1857–58 after Abe Masahiro, but also served earlier, and is listed earlier; he is not also listed after Abe.''Under [Tokugawa Ieyasu]
- Ōkubo Tadachika
- Ōkubo Nagayasu
- Sakakibara Yasumasa
- Honda Masanobu
- Naruse Masanari
- Andō Naotsugu
- Honda Masazumi
- Naitō Kiyonari
- Aoyama Tadanari
Under [Tokugawa Hidetada]
- Aoyama Narishige
- Sakai Tadatoshi
- Sakai Tadayo
- Doi Toshikatsu
- Andō Shigenobu
- Naitō Kiyotsugu
- Aoyama Tadatoshi
- Inoue Masanari
- Nagai Naomasa
Under [Tokugawa Iemitsu]
- Abe Masatsugu
- Inaba Masakatsu
- Naitō Tadashige
- Sakai Tadakatsu
- Morikawa Shigetoshi
- Aoyama Yukinari
- Matsudaira Nobutsuna
- Abe Tadaaki
- Hotta Masamori
- Abe Shigetsugu
- Matsudaira Norinaga
Under [Tokugawa Ietsuna]
- Sakai Tadakiyo
- Inaba Masanori
- Kuze Hiroyuki
- Itakura Shigenori
- Tsuchiya Kazunao
- Abe Masayoshi
- Ōkubo Tadatomo
- Hotta Masatoshi
- Doi Toshifusa
- Itakura Shigetane
Under [Tokugawa Tsunayoshi]
- Toda Tadamasa
- Abe Masatake
- Matsudaira Nobuyuki
- Tsuchiya Masanao
- Ogasawara Nagashige
- Akimoto Takatomo
- Inaba Masamichi
- Honda Masanaga
- Ōkubo Tadamasu
- Inoue Masamine
Under [Tokugawa Ienobu] and Ietsugu">Tokugawa Ietsugu">Ietsugu
- Abe Masataka
- Kuze Shigeyuki
- Matsudaira Nobutsune
- Toda Tadazane
Under [Tokugawa Yoshimune]
- Mizuno Tadayuki
- Andō Nobutomo
- Matsudaira Norisato
- Matsudaira Tadachika
- Ōkubo Tsuneharu
- Sakai Tadaoto
- Matsudaira Nobutoki
- Matsudaira Terusada
- Kuroda Naokuni
- Honda Tadanaga.
- Toki Yoritoshi
- Sakai Tadazumi
- Matsudaira Norikata
- Hotta Masasuke
Under [Tokugawa Ieshige]
- Nishio Tadanao
- Honda Masayoshi
- Matsudaira Takechika
- Sakai Tadayori
- Matsudaira Terutaka
- Inoue Masatsune
- Akimoto Sumitomo
Under [Tokugawa Ieharu]
- Matsudaira Yasutoshi
- Abe Masasuke
- Itakura Katsukiyo
- Tanuma Okitsugu
- Abe Masachika
- Kuze Hiroakira
- Mizuno Tadatomo
- Torii Tadaoki
- Makino Sadanaga
Under [Tokugawa Ienari]
- Abe Masatomo
- Matsudaira Sadanobu
- Matsudaira Nobuakira
- Matsudaira Norisada
- Honda Tadakazu
- Toda Ujinori
- Ōta Sukeyoshi
- Andō Nobunari
- Makino Tadakiyo
- Doi Toshiatsu
- Aoyama Tadahiro
- Matsudaira Noriyasu
- Sakai Tadayuki
- Mizuno Tadanari
- Abe Masakiyo
- Ōkubo Tadazane
- Matsudaira Norihiro
- Matsudaira Terunobu
- Uemura Ienaga
- Matsudaira Yasutō
- Mizuno Tadakuni
- Matsudaira Muneakira
- Ōta Sukemoto
- Wakisaka Yasutada
- Matsudaira Nobuyori
- Hotta Masayoshi
Under [Tokugawa Ieyoshi]
- Doi Toshitsura
- Inoue Masaharu
- Manabe Akikatsu
- Sanada Yukitsura
- Hori Chikashige
- Toda Tadaharu
- Makino Tadamasa
- Abe Masahiro
- Aoyama Tadanaga
- Matsudaira Noriyasu
- Matsudaira Tadakata
- Kuze Hirochika
- Naitō Nobuchika
Under [Tokugawa Iesada]
- Wakisaka Yasuori
Under [Tokugawa Iemochi] and Yoshinobu">Tokugawa Yoshinobu">Yoshinobu
- Andō Nobumasa
- Honda Tadamoto
- Matsudaira Nobuyoshi
- Ogasawara Nagamichi
- Itakura Katsukiyo
- Inoue Masanao
- Mizuno Tadakiyo
- Sakai Tadashige
- Arima Michizumi
- Makino Tadayuki
- Matsumae Takahiro
- Abe Masato
- Suwa Tadamasa
- Inaba Masakuni
- Matsudaira Munehide
- Inoue Masanao
- Matsudaira Yasuhide
- Mizuno Tadanobu
- Matsudaira Norikata
- Inaba Masami
- Matsudaira Sadaaki
- Ōkōchi Masatada
- Sakai Tadatō
- Tachibana Taneyuki