- Born: 1814
- Died: 1903
- Japanese: 八木 源之丞 応迅 (Yagi Gennojou Masahaya)
Yagi Gennojô's residence in Kyoto.
Yagi Gennojô was a Gôshi in Mibu village, Kyoto.
His house became the Mibu Roshigumi (Later Shinsengumi) headquarters.
Serizawa Kamo and Hirayama Gorô were killed in the house.
His son Yagi Tamesaburo left many accounts of the Shinsengumi.