Japan Castle Atlas

Mariyatsu Jokan

真里谷信清

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

Connected castles

Ōtaki, Chiba

大多喜城

A Showa-era keep crowns the hill, yet the only building left from the Edo period is a single gate beside the entrance of the high school below.

BuiltRecord source: jokaku