Japan Castle Atlas

Hitotsuyanagi Naosue

一柳直末

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

Connected castles

Hashima, Gifu

竹ヶ鼻城

LordRecord source: wikipedia

Seki, Gifu

一柳城

Rebuilt / expandedRecord source: wikipedia

Motosu, Gifu

軽海西城

LordRecord source: wikipedia