History
The domain's capital of Obama was a prosperous port city throughout much of the 15th-17th centuries, though it gradually became a quiet provincial castle town later in the Edo period. Still, it was an important link in the domestic sea routes between Ezo and the Sea of Japan coast, and played a significant role in the economic development of the early Edo period.
In the Sengoku period, Obama was controlled by a succession of lords, including members of the Takeda clan, followed by Niwa Nagashige, Asano Nagamasa, and others, including Kinoshita Katsutoshi. In 1600, Kinoshita did not participate in the decisive battle of Sekigahara in 1600, but he was deprived of Obama because he had not actively supported the winning side.
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