Yoshio Kosaku

• Born: 1724
• Died: 1800
• Other Names: 吉雄耕牛 (Yoshio Kougyuu)
• Japanese: 吉雄幸作 (Yoshio Kousaku)

Yoshio Kôsaku was a Rangaku expert and one of the chief official Dutch translators stationed in Nagasaki. This position was passed down within the Yoshio family, and their house, which came to contain a great many Dutch/Western artifacts over the years, was sometimes known as Kômô yashiki ("the Dutch mansion," or "Mansion of Red-Hairs").

References

• Yonemoto, Marcia. Mapping Early Modern Japan. University of California Press, 2003. pp86-87.