Japan Castle Atlas

Taira no Masakado

平将門

Builder and lord records come from the Japan Castle Foundation list and Japanese Wikipedia.

Connected castles

Moriya, Ibaraki

今城

Geospatial Information Authority of JapanRetouch: Qurren (トーク)CC BY 4.0Wikimedia Commons

BuiltRecord source: wikipedia

Ichikawa, Chiba

大野城

BuiltRecord source: wikipedia