Bicchu Takamatsu Castle Ruins and Water Siege: Tracing Historical Remains Created by Toyotomi Hideyoshi's Strategy

"Bicchu Takamatsu Castle Ruins" in Kita-ku, Okayama City are famous as the site of the "Takamatsu Castle Water Siege" conducted by Toyotomi Hideyoshi (then Hashiba Hideyoshi) against the Mori clan in 1582 (Tensho 10). As one of Japan's three great water sieges (Takamatsu, Oshi, Ota), it is recorded in military history as an extraordinary siege strategy.

Background of the Water Siege and "Chugoku Osegaeshi"

To capture the castle held by castellan Shimizu Muneharu, Hideyoshi built large-scale embankments (Ishiiyama embankments) to submerge surrounding farmland in water. The completed embankments extended 3 kilometers, and the castle was surrounded and isolated by water. Midway through this, upon receiving urgent news of "the Honnoji Incident," Hideyoshi made peace and hurried back in the "Chugoku Osegaeshi" forced march.

Historical Sites and Memorial Hall

Currently, the castle ruins are developed as a park, with historical sites including "Ishiiyama Observation Deck" and "Kawazugahana Embankment Ruins" remaining. Nearby is "Takamatsu Castle Ruins Historical Museum" displaying materials related to the water siege.

Base for Kibi Road Tours

Takamatsu Castle ruins is also an ideal location as a base for "Kibi Road tours" visiting surrounding areas including Kibitsu Shrine, Tsukuriyama Ancient Tomb, and Kinojo Castle.

Access

About 15 minutes on foot from JR Kibi Line (Momotaro Line) Bicchu-Takamatsu Station. About 20 minutes from Okayama Station.