They say that Sanada's side was about 1200 strong, and Masayuki was besieged in Ueda-jo Castle, and his oldest son Nobuyuki was besieged a branch castle Toishi-jo Castle.
これに対して真田方は約1200人であったと言われ、昌幸は上田城に、長男の信幸は支城の戸石城に篭城した。