Sekiyado Domain

Sekiyado Domain (関宿藩, Sekiyado-han^?) was a feudal domain under the Tokugawa shogunate of Edo period Japan, located in Shimōsa Province (the northern portion of Chiba Prefecture and southern portion of Ibaraki Prefecture in modern-day, Japan). It was centered on Sekiyado Castle in what is now the city of Noda, Chiba.

Prime Minister Baron Suzuki Kantarō was born as the son of a samurai of Sekiyado Domain.

Sekiyado is located at the confluence of the Tone River and the Edo River, and was thus a strategic location controlling river traffic in the northern Kantō region, as well as the northeastern approaches to Edo. Following the Battle of Odawara in 1590, the Kantō region by was assigned by Toyotomi Hideyoshi to Tokugawa Ieyasu, who appointed his half-brother Matsudaira (Hisamatsu) Yasumoto as daimyō of the newly formed Sekiyado Domain, with revenues of 20,000 koku. His revenues were increased to 40,000 koku in 1591. The domain passed from Matsudaira control to various other clans over its history: however, as an indication of the importance the Tokugawa shogunate placed on Sekiyado, of the 22 daimyōs who ruled the domain, 22 held the post of Rōjū and three held the post of Kyoto Shoshidai.

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