Historic Ruins
○ Second 100 Castles

Miki Castle

Famous as the site of Oda Nobunaga's 'starvation siege' (干殺し) of 1578–1580, where Hashiba Hideyoshi cut off all supply lines until the castle surrendered after two years. The earthworks on the hill in central Miki City are a national historic site.

Japanese Name三木城
PrefectureHyogo Prefecture (兵庫県)
RegionKinki (近畿)
Castle TypeHill Castle
Year Built16th c.
Designation続100名城
Coordinates34.7833, 134.9833

Miki Castle occupies a place of somber significance in Japanese history as the site of one of the conflict's most brutal military campaigns. Located in central Miki City in Hyogo Prefecture, this hill castle was the focus of a two-year siege beginning in 1578 that exemplified the ruthless tactics employed during Japan's period of unification. The castle has been designated as a national historic site, preserving earthworks that remain visible to this day.

Built in the 16th century, Miki Castle served as a regional stronghold until it became the target of Oda Nobunaga's forces under the command of Hashiba Hideyoshi, who later became one of Japan's most powerful unifiers. The siege strategy employed was known as a 'starvation siege' or hoshi-goroshi, in which all supply lines to the castle were systematically cut off. Rather than launch direct assaults, the besieging forces simply waited for the castle's inhabitants to exhaust their food supplies over approximately two years.

The earthworks that remain visible today testify to the massive scale of the siege operations, with substantial defensive structures built by the besieging forces to encircle and contain the castle. These archaeological remains provide tangible evidence of the engineering and logistical sophistication of medieval warfare in Japan. The surrounding terrain shows how terrain was manipulated to create nearly impassable barriers.

The site offers visitors the opportunity to contemplate one of the conflict's more historically significant events. Walking the grounds allows visitors to appreciate both the natural topography and the constructed modifications that transformed the area into a stage for historical drama that would ultimately contribute to Japan's eventual unification.

Miki Castle is recognized as one of Japan's second 100 castles as designated by the Japan Castle Foundation, a distinction that highlights its historical and architectural importance among the hundreds of castle sites across the country. Its design reflects the defensive priorities and construction techniques of the feudal period, with origins dating to 16th c.. Visitors traveling to Hyogo Prefecture can explore the site alongside other regional historical attractions, and the location is well served by public transportation from major nearby cities.