Sorimachi Yakushi Temple is a historic Buddhist temple located in Sorimachi, Nitta, Ota City, Gunma Prefecture. Its official name is Rurizan Myoko-in Shomeiji Temple. Known locally as “Yakushi-sama,” the temple has long been a place of worship and is particularly associated with prayers for protection from bad luck and misfortune.
The temple grounds are believed to stand on the former residence of Nitta Yoshisada, a prominent warrior of medieval Japan. For this reason, the site is also known as the Sorimachi Manor Site. Sections of the original moats and earthen ramparts remain around the grounds, offering visitors a glimpse of the defensive structures of a medieval Japanese fortified residence.
The site is also part of the Nitta-no-sho Historic Sites, a group of important medieval sites associated with the former Nitta Estate. It has been designated as a National Historic Site of Japan.
In addition to its historical importance, Sorimachi Yakushi Temple is known for its beautiful seasonal scenery. Cherry blossoms decorate the grounds in spring, while spectacular wisteria comes into bloom in early summer, making the temple an appealing destination for visitors interested in both history and nature.
The site where Sorimachi Yakushi Temple now stands is traditionally believed to have been the residence of Nitta Yoshisada, a warrior who was active from the late Kamakura period through the Nanboku-cho period. Yoshisada was a leading figure of the Nitta clan, which was based in the former Nitta District of Kozuke Province, corresponding to present-day Gunma Prefecture.
According to local tradition, Yoshisada established a new residence here after his earlier residence near present-day Bessho in Ota City became too small. The location was considered suitable because it had abundant groundwater and offered favorable natural defenses. It is also said that Yoshisada strengthened his resolve to oppose the Kamakura Shogunate in the vicinity of this residence.
The original Sorimachi Manor is believed to have been a well-defended flatland fortification surrounded by three concentric moats. Sections of the moats, measuring approximately 10 to 20 meters in width, can still be seen around the temple grounds. Some contain water even today, preserving the atmosphere of a medieval Japanese fortified residence.
After being established during the Kamakura and Nanboku-cho periods, Sorimachi Manor was later used as a supporting stronghold of Kanayama Castle during the Muromachi period. During the Warring States period, the site is believed to have been significantly expanded into a more substantial castle with three surrounding moats.
In 1584, when the Hojo clan attacked Kanayama Castle, historical records indicate that Sorimachi Manor was used as a headquarters by Hojo Ujikuni. This episode illustrates the site’s strategic importance during the turbulent era of civil warfare.
Following the defeat of the Hojo clan during Toyotomi Hideyoshi’s Siege of Odawara in 1590, the manor lost its military role and was eventually abandoned as a fortified site.
After the site ceased to function as a fortified residence, a Buddhist temple was established here. The Yura clan is said to have founded Shomeiji Temple on the former manor grounds, beginning the site’s history as a place of Buddhist worship.
In 1714, the temple, which had originally stood about 500 meters to the north, was destroyed by fire. It was subsequently relocated to the former Sorimachi Manor Site, where it has remained ever since.
The temple grounds include the main hall, Daishi Hall, a meditation and retreat hall, bell tower, and water purification pavilion. Together, these buildings create a peaceful atmosphere characteristic of a historic Japanese temple.
Behind the main hall is a pond known as the Silent Pond (Nakazu-no-Ike). An intriguing legend connected with Nitta Yoshisada is associated with this tranquil spot.
According to the story, Yoshisada once held a military council at his residence. The frogs around the pond were making so much noise that they disturbed the discussion. Yoshisada ordered them to be quiet, and, according to legend, the frogs immediately stopped croaking. From that time onward, it was said that frogs never again made their voices heard at the pond.
This legend gave the pond its name, Nakazu-no-Ike, meaning “Pond Where Nothing Croaks.” Today, the pond remains a quiet and picturesque feature of the temple grounds.
Sorimachi Yakushi Temple is also known for its seasonal flowers. In spring, the cherry trees around the temple burst into bloom, creating a beautiful contrast with the calm atmosphere of the historic temple buildings and grounds.
In early May, the temple’s impressive wisteria trellis becomes covered with cascading purple flowers. The sight of the flowers swaying gently in the breeze attracts many visitors and has made Sorimachi Yakushi Temple one of the notable wisteria-viewing spots in Ota City.
One of the most impressive natural features on the temple grounds is a large camphor tree believed to be approximately 500 years old. The tree stands about 18 meters tall and has a trunk circumference of approximately 9.9 meters.
According to local tradition, the tree may have grown from several camphor trees planted together in connection with the name of Kusunoki Masashige, another famous warrior in Japanese history. The trunk appears to divide into six major sections higher up, while the base remains united, giving the tree a distinctive appearance.
A nearby wisteria tree is also believed to be around 150 years old. Together with the surrounding structure, it forms the impressive wisteria trellis that becomes a highlight of the temple grounds in spring.
Sorimachi Yakushi Temple has long been revered as a place to pray for protection from misfortune. Every year on January 4, a special festival is held at the temple. Many worshippers visit on this day, and the grounds become lively with religious activities and visitors.
For local residents, the temple is more than an archaeological or historical site. It remains an active place of faith that continues to play a role in the community’s spiritual life.
The Sorimachi Manor Site is one of a group of archaeological and historic sites associated with the medieval Nitta Estate. In 2000, the group was designated as the Nitta-no-sho Historic Sites, a National Historic Site of Japan.
The Nitta Estate was established during the late Heian period and later developed as the home territory of the Nitta clan. Today, 11 sites, including former manor sites, temples, and spring areas, are preserved together as part of this historic designation.
These remains are particularly valuable for understanding the development of medieval estates and warrior culture in eastern Japan.
Approximately 50 minutes from the Tatebayashi Interchange on the Tohoku Expressway.
Approximately 20 minutes from the Isesaki Interchange on the Kita-Kanto Expressway.
Approximately 30 minutes by taxi from Ota Station on the Tobu Isesaki Line.
Approximately 10 minutes by taxi from Kizaki Station on the Tobu Isesaki Line.
Sorimachi Yakushi Temple offers visitors the opportunity to experience both the history of medieval Japan and the beauty of its natural surroundings. The site preserves important traces of the former residence and fortified settlement associated with Nitta Yoshisada, including moats and earthen ramparts that still evoke the atmosphere of a medieval Japanese stronghold.
At the same time, the temple grounds are enhanced by cherry blossoms, magnificent wisteria, and a centuries-old camphor tree. Walking through the grounds provides a sense of stepping back into the history of the Nitta clan while enjoying the peaceful scenery of a traditional Japanese temple.
For travelers exploring the historical heritage of Ota City and Gunma Prefecture, Sorimachi Yakushi Temple is a fascinating destination to combine with other sites associated with the Nitta clan.