Tokugawa branch domain
Historical term for a feudal domain (han) ruled by a branch family of the Tokugawa shogunate during the Edo period.
Shinpan were domains governed by branches of the Tokugawa family.
The Mito domain was one of the shinpan.
daimyo of a Tokugawa branch domain
From 親 (shin, 'parent' or 'close relative') and 藩 (han, 'domain'), referring to domains held by relatives of the Tokugawa shogun.