Sayama Domain

It was centered around the Sayama jin'ya which was located in what is now the city of Ōsakasayama and was controlled by the tozama daimyō Hōjō clan throughout all of its history.

On Ujinori's death in 1600, Ujimori inherited his father's fiefs, thus giving him a combined kokudaka of 11,000 koku, which qualified him for the title of daimyō under the Tokugawa shogunate.

Inaba succeeded in having the domain abolished; however almost simultaneously, the tairō Sakai Tadakiyo granted a new fief with a kokudaka of 10,000 koku, thus preserving the clan's status.

During the Bakumatsu period, the domain was called upon to dispatch troops to quell the Oshio Heihachiro uprising of 1837, to guard Osaka Bay during the incursion of Russian Admiral Yevfimiy Putyatin in 1849, and to suppress the Tenchūgumi in 1863.

The final daimyō, Hōjō Ujiyasu, surrendered the domain to the Meiji government in 1869 without waiting for the abolition of the han system in 1871 and refused the position of imperial governor.