senior councillor; member of the shogun's council of elders
Historical term for a high-ranking official in the Edo-period shogunate. The reading ろうぢゅう is a historical kana spelling.
In the Edo period, the rōjū were involved in important policy decisions of the shogunate.
Standard kanji spelling for this historical title.
From 老 (elder) + 中 (middle, inside), referring to senior members within the shogun's council.