Gentaku Ōtsuki

Gentaku OTSUKI (November 9, 1757 - April 25, 1827) was a Rangakusha (a person who studied Western sciences by means of the Dutch language) from Ichinoseki Domain (Tamura Domain), a branch domain of Sendai Domain during the late Edo Period. His real name was Shigekata and his second name was Bansui.