Akamatsu clan

 is a Japanese samurai family of direct descent from Minamoto no Morifusa of the Murakami-Genji.
History.
They were prominent shugo-daimyō in Harima during the Sengoku period.
During the Ōnin no ran (1467-1477), Akamatsu Masanori was one of the chief generals of the Hosokawa clan.
The head of the clan at Shizuoka in Suruga Province became a "kazoku" baron in 1887.""
The Shinmen clan were a branch of the Akamatsu.