Sakurabora Castle

Sakurabora Castle was a medieval Japanese fortress located in the former Hida Province, within the boundaries of present-day Gero City in Gifu Prefecture. Constructed in 1544 by the daimyo Mitsuki Naoyori near the conclusion of the Sengoku period, the site served as a strategic stronghold during a turbulent era of civil war. Its architectural style reflected typical mountain castle designs of the time, utilizing natural terrain and earthen defenses rather than the stone foundations that became common in later centuries. Today, the physical structure no longer stands, having succumbed to centuries of neglect following its abandonment in the late sixteenth century.

The historical significance of Sakurabora Castle is closely tied to the Mitsugi clan. In 1579, clan ruler Mitsugi Yoritsuna began building nearby Matsukura Castle to serve as his primary residence. During the interim construction period, Sakurabora functioned as Yoritsuna's seat of power, and once the new fortress was completed, it remained in use as the clan's winter home. This dual usage ended abruptly in 1585 when Kanamori Nagachika attacked and captured the site. Following this conquest, Nagachika established his own headquarters at Hagiwara-Suwa Castle, leading to the immediate disuse and eventual ruin of Sakurabora.

In the modern era, the location where Sakurabora Castle once stood is marked only by faint traces of its original earthen walls. The site is easily accessible to visitors, situated just a twenty-minute walk from Hida-Hagiwara Station along the JR Takayama Line, which now runs directly past the historic grounds. While no buildings remain, the area is recognized as a historic site, offering a quiet glimpse into the regional military history of Gifu Prefecture. These remaining earthworks serve as the sole tangible connection to the fortress that once housed powerful warlords during Japan's feudal age.