一国一城 (いっこくいちじょう) — (possession of) one feudal domain and one castle; being independent (acting without compromise or assistance)
一国一城
い っ こ く い ち じょ う
い っ こ く い ち じょ う
(possession of) one feudal domain and one castle; being independent (acting without compromise or assistance)
Establishing only one castle in each feudal domain (edict issued by the shogunate in 1615)
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