The sixteenth head Nobumasa Takeda expelled the Atobe clan and stabilized the situation in the territory by strengthening the control over vassals, but an internal war occurred over his successor.
16代武田信昌の時には跡部氏を排斥して家臣団の統制を行い国内を安定化に向かわせるが、後継者を巡り内乱となる。