clan, enclosure
藩 centers on a bounded domain: a feudal clan's territory or a physical enclosure that marks off an area.
藩 combines 艹 (grass) with 潘, which likely contributes the sound and relates to water or a boundary. The compound suggests a fenced or hedged enclosure, later extended to a feudal domain.
Grass 艹 growing over a watery field 潘 marks the boundary of a clan's enclosed territory.
For ハン, imagine a hand-built fence enclosing the clan's land: hand -> ハン, and the fence marks the enclosure.
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han (estate of a daimyo in the Edo and early Meiji periods); feudal domain; fief; province
feudal lord; daimyo
retainer of a daimyo
domain administration (Edo period); clan administration
becoming a lordless samurai
abolition of the han system and establishment of prefectures (1871)
han school; school established by a daimyo for educating the children of the domain's retainers
residence maintained by a daimyo in Edo
many feudal domains
each (feudal) domain; each fief
the same domain; the same province
large feudal domain; large fiefdom
small han; small (feudal) domain
feudal system of the shogunate and domains
abolition of the han system (1871)
subsidiary domain; sub-fief
former (feudal) domain; former fief
former feudal lord
governor of a feudal domain (1869-1871)
within a (feudal) domain