Tajima Province

The early history of the Tajima region is uncertain. There appear to have been two power centers. The Tajima Kuni no miyatsuko ruled in eastern Tajima (present-day Asago District and Yabu District) and are mentioned in the Kujiki. They tenuously claimed descent from then legendary Emperor Kaika,and eventually took the surname of "Tajima". The Chasuriyama Kofun and the Miidani Kofun Cluster are located in their territory. Western Tajima (present-day Mita District) was under the control of the Futakata Kuni no miyatsuko, who claimed descent from the rulers of Izumo. At some point, the two areas came under the control the ancient Tanba Kingdom, which was later divided into Tajima, Tango and Tanba. However, since the name "Tajima" appears in the Nihon Shoki, in an entry dated 675 AD, this division occurred before the formalization of the Japanese provinces.

The "Wamyō Ruijushō" states that the provincial capital was located in Keta District, possibly in the Izucho neighborhood of Toyooka city, but the precise location is uncertain.[2] According to "Nihon Koki", the capital was related to a place called "Kodago", also in Keta District in the year 804. This appears to correspond the Nyogamori site which has been excavated near the former Hidaka town hall, which is also part of Toyooka city. The site of the Tajima Kokubun-ji (also in Toyooka) is known, and is a National Historic Site. The Engishiki records of 927 lists ten major and 106 minor Shinto shrines, with Kono Jinja and Awaga Jinja vying for the title of the ichinomiya of the province.[3]

During the early Muromachi period, the Yamana clan were shugo of Tajima province and constructed Konosumiyama Castle as their stronghold. They were later defeated by the forces of Toyotomi Hideyoshi.

During the Edo Period, Tango province was somewhat of a backwater, due to its geographical location. The Ikuno silver mine was tenryō territory directly administered by the shogunate. Two small domains were established in Tajima under the Tokugawa shogunate. Toyooka Domain was created for Sugihara Nagafusa, who had married a daughter of Azai Nagamasa. In 1658 the line went extinct, and in 1668 the shogunate transferred a cadet branch of the Kyōgoku clan from Tango-Tanabe Domain to Toyooka. Izushi Domain was established for Koide Yoshimasa, the son of one of Ieyasu's generals. In 1706, it was awarded to the Sengoku clan, who ruled until the Meiji restoration.

The Yamana clan, formerly rulers of 11 provinces had been reduced in status the Battle of Sekigahara to a small hatamoto holding of 6700 koku in Shitsumi district. Yamana Toyokuni was allowed to construct a jin'ya and although it was a poor territory, his descendants opened mines, new rice fields, fostered raising cattle and gradually raided their revenues until 1868, when the reached the 11,000 koku level and were allowed to become daimyō by the new Meiji government. However, the title was abolished only a few months later, and the Yamana served as imperial governors of "Muraoka Prefecture" until the abolition of the han system in 1871. The final ruler, Yamana Yoshimichi, was ennobled with the kazoku title of baron (danshaku).

Bakumatsu period domains

Name	Clan	Type	kokudaka
Toyooka	Kyōgoku clan	Tozama	70,000 koku
Izushi	Sengoku clan	Tozama	20,000 koku
Muraoka	Yamana clan	-NA-	10,000 koku