Nagasaki bugyō

Nagasaki bugyō (長崎奉行^?) were officials of the Tokugawa shogunate in Edo period Japan. Appointments to this prominent office were usually fudai daimyō, but this was amongst the senior administrative posts open to those who were not daimyō. Conventional interpretations have construed these Japanese titles as "commissioner" or "overseer" or "governor."

This bakufu title identifies an official responsible for administration of the port of Nagasaki, including the Chinese and Dutch settlements located there. This bugyō was also responsible for overseeing the port's commercial activities. The numbers of men holding the title concurrently would vary during the years of this period. At any given time, one would normally be in residence at Nagasaki, and the other would be in Edo as part of an alternating pattern.

Other duties of the Nagasaki bugyō included monitoring news and scientific developments in the West as information became available in the course of trade. For example, the Nagasaki City Museum preserves letters from the Dutch opperhoofd to the Nagasaki bugyō about the two-year-long sales negotiations and the purchase price of a portable Dutch astronomical quadrant imported into Japan in 1792, implying that the instrument was seen as important by both the Japanese and the Dutch. The details of the instrument, along with some elaborate drawings, were provided in the Kansei Rekisho (Compendium of the Kansei Calendar), which was completed around 1844. The compendium records the names of the instrument’s manufacturers, as inscribed on the telescope and on the pendulum box—G. Hulst van Keulen and J. Marten Kleman (1758–1845). Although that instrument once owned by the Astronomical Office of the shogunal government is now lost, drawings of a quadrant equipped with a telescope (Gensho Kansei-kyo zu) have been reported by the National Astronomical Observatory of Japan.

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