- Koyamada clan
. The five branches were as follows:
*One claimed descent from the
Taira clan . One famous descendant was theSengoku period samurai generalOyamada Nobushige .
*One was descended from the Usa clan.
*One claimed descent from the Northern Fujiwara by way of Uesugi Shigefusa.
*One claimed descent from the Northern Fujiwara by way of Onomiya Saneyori.
*One claimed descent from the Northern Fujiwara by way of Kikuchi Noritaka.References
*ja icon [http://www2.harimaya.com/sengoku/html/oyamada.html "Oyamada-shi" (Taira descent) on Harimaya.com] (accessed 28 August 2008)
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