Wakadoshiyori

The , or "Junior Elders", were high government officials in the Edo period Japan under the Tokugawa shogunate (1603-1867). The position was established around 1633, but appointments were irregular until 1662. The four to six "wakadoshiyori" were subordinates to the "rōjū" in status, but they ranked above the "jisha-bugyō". The served for a month at a time on a rotating basis and were selected from the ranks of the "fudai daimyō". There were periods when the number of "wakadoshiyori" rose to 6 or 7 at one time.
The "wakadoshiyori" were tasked with supervising the direct vassals of the "shōgun", namely the "hatamoto" and "gokenin" using reports provided by the "metsuke". They also oversaw the activities of artisans and physicians, organised and supervised public works projects and were in change of the "shōgun's" personal guards. In the event of war, the "wakadoshiyori" were theoretically to lead the "hatamoto" in battle.
List of "Wakadoshiyori".
"Wakadoshiyori-kaku".
The "wakadoshiyori-kaku" were bakufu officials ranking as "wakadoshiyori," but not actually appointed as such.
"'List of "wakadoshiyori-kaku"