Kawakami Gensai

Kawakami Gensai [川上玄斎]
Ukyo-e depicting Kawakami Gensai after the assassination of Sakuma Shōzan, by unknown artist
Native name
河上 彦斎
Birth nameKomori Genjiro (小森 彦次郎)
Other nameKouda Genbei (高田 源兵衛)
NicknameHitokiri
Born(1834-12-25)25 December 1834
Died13 January 1872(1872-01-13) (aged 37)
Kodemmachōin, Nihombashi, Tokyo, Japan
Buried
AllegianceIshin Shishi (former)
Chōshū Domain (former)
Kumamoto Domain
UnitKiheitai (former)
ConflictsFirst Chōshū expedition
Second Chōshū expedition
Spouse
Misawa Teiko
(m. 1861⁠–⁠1872)
ChildrenKawakami Gentarō (son)
RelationsKomori Sadasuke (father)
Waka (mother)
Kawakami Genbei (adoptive father)
Komori Hanzaemon (brother)
Kawakami Toshiharu (grandson)
Other workmilitary official, sword trainer, former assassin

Kawakami Gensai (河上 彦斎; 25 December 1834 – 13 January 1872) was a Japanese samurai of the late Edo period. A highly skilled swordsman, he was one of the four most notable assassins of the Bakumatsu period. Gensai's high-speed sword discipline allowed him to assassinate targets in broad daylight.