Echigo Saburô was a son of Matsumoto Ryozo. He joined the Shinsengumi as a spy from Chôshû han. He attempted to kill Nagakura Shinpachi and Nakamura Kingo but failed and deserted the next day.
References
- Shinsengumi - Honor and Determination of the Mibu Rôshi (血誠新撰組-峻烈壬生浪士忠と斬), Rekishi Gunzô series #31, Gakken, Japan, 2003
- Shinsengumi Zentaishi Tettei Guide (新選組全隊士徹底ガイド) Maeda Masaki