It was also one of the ranks which rated daimyo families, based on their places of residence and castles, into kokushu (kunimochidaimyo), junkokushu (literally, "associate kokushu"), joshu daimyo (daimyo who was allowed to live in a castle), joshu class, and mujo daimyo (daimyo without castle; "jinya").
また、大名家をその居地・居城から格付けする国主（国持大名）-準国主-城主大名-城主格-無城（陣屋）のうちの一つ。