The Akamatsu clan(赤松氏,Akamatsu-shi?) was a Japanesesamurai family of direct descent from Minamoto no Morifusa. They were prominent shugo-daimyō in Harima during the Sengoku period.
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Hall, John Whitney. (1999). The Cambridge History of Japan: Medieval Japan, Vol. 3. Cambridge: Cambridge University Press. 10-ISBN 0-521-22354-7/13-ISBN 978-0-521-22354-6; OCLC 165440083
Nussbaum, Louis Frédéric and Käthe Roth. (2005). Japan Encyclopedia. Cambridge: Harvard University Press. 10-ISBN 0-674-01753-6; 13-ISBN 978-0-674-01753-5; OCLC 48943301