御三卿
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Meanings
1
three secondary Tokugawa branch families (Tayasu, Shimizu, and Hitotsubashi)
Historical term referring to the three cadet branches of the Tokugawa shogunate, established to provide heirs to the main line. Often contrasted with the 御三家 (gosanke).
See also: 三卿
The Gosankyō consists of the three families: Tayasu, Shimizu, and Hitotsubashi.
During the Edo period, the Gosankyō played the role of providing successors to the shogun family.