Ako Castle is the starting point of the Ako Ronin, famous from the Chushingura tale. As the seat of Asano Naganori, it features a distinctive irregular concentric layout. The annual Ako Gishi Festival continues to convey the spirit of loyalty from this historic castle.
Ako Castle was constructed in 1661 (Kanbun 1) under the order of Asano Naganobu, the first lord of the Ako Domain, who entrusted the layout design to Kondo Masazumi. Built as a flatland castle near the coast, it is distinguished by its irregular polygonal (henkei-rinkaku) design, which is exceptiona…
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