Sunpu Domain (, Sunpu-han) was a feudal domain under the Tokugawa shogunate of Edo period Japan. The domain centered at Sunpu Castle is what is now the Aoi-ku, Shizuoka. From 1869 it was briefly called Shizuoka Domain ().
During the Muromachi period, Sunpu was the capital of the Imagawa clan. The Imagawa were defeated at the Battle of Okehazama, and Sunpu was subsequently ruled by Takeda Shingen, followed by Tokugawa Ieyasu. However, Toyotomi Hideyoshi relocated Ieyasu from his territories in the T?kai region of Japan, and installed Nakamura Kazutada in his place. After the Toyotomi were defeated in the Battle of Sekigahara, Ieyasu recovered Sunpu and relocated Nakamura to Yonago in H?ki Province. Sunpu was initially reassigned to Nait? Nobunari in 1601. This marked the start of Sunpu Domain.
In April 1606, Ieyasu officially retired from the post of sh?gun, and he retired to Sunpu, where he established a secondary court, from which he could influence Sh?gun Tokugawa Hidetada from behind the scenes. Nait? was transferred to Nagahama in ?mi Province.
The Sunpu Domain was briefly re-established in 1609 for Tokugawa Ieyasu's tenth son Tokugawa Yorinobu. It was disbanded in 1619 and reverted to tenry? status (direct administration by the shogunate) when Yorinobu moved to Wakayama to found Wakayama Domain.
In 1624, Sunpu Domain was again established, this time for Tokugawa Hidetada's third son Tokugawa Tadanaga, with assigned revenues of 550,000 koku. However, Tadanaga had very strained relations with his brother, Sh?gun Tokugawa Iemitsu. He was removed from office and forced to commit seppuku in December 1632, after which time the Sunpu Domain returned to the direct administration by the shogunate. Through the remainder of the Edo period, Sunpu was ruled by the Sunpu j?dai (?), an official with hatamoto status, appointed by the central government.
During the Meiji Restoration, the final Tokugawa sh?gun, Tokugawa Yoshinobu resigned his office to Emperor Meiji and leadership of the Tokugawa clan to Tokugawa Iesato. In 1868, Iesato was demoted in status to that of an ordinary daimy?, and assigned the newly created Shizuoka Domain, which included all of the former Sunpu Domain, neighboring Tanaka and ?jima Domains, and additional lands in T?t?mi and Mutsu Provinces for a total revenue of 700,000 koku. The territories in Mutsu were exchanged for territories in Mikawa Province later that year.
The lands of the former Shizuoka Domain now form the western two-thirds of Shizuoka Prefecture, plus the Chita Peninsula in Aichi Prefecture. At times, the domain included Kai Province and parts of T?t?mi Province in addition to Suruga Province.
|#||Name||Tenure||Courtesy title||Court Rank||kokudaka|
|Nait? clan, 1601-1609 (fudai)|
|1||Nait? Nobunari (?)||1601-1606||Bizen-no-kami ()||Lower 5th (?)||40,000 koku|
|Tokugawa clan, 1609-1868 (shinpan)|
|1||Tokugawa Yorinobu ( )||1609-1619||Dainagon ()||2nd ()||500,000 koku|
|1||Tokugawa Tadanaga ( )||1625-1634||Dainagon ()||2nd ()||550,000 koku|
|1||Tokugawa Iesato ( )||1869-1871||Sangi ()||1st ()||700,000 koku|