title: Tomono clan
text: # Tomono clan
  
  The Tomono clan (伴野氏, Tomono-shi) were a Japanese kin group in Shinano province during the Sengoku Period.
  
  ## History
  
  The Tomono claim descent from the Ogasawara clan, particularly Ogasawara Nagakiyo.
  
  The clan were weakened after involvement in the Adachi Yasumori affair in 1285. In the Sengoku period they became vassals of Takeda Shingen, but later became retainers of the Tokugawa after the Takeda fell in 1582.
  
  