Masatoyo NAITO (Sukenaga KUDO), who was one of the Twenty-Four Generals of the Takeda clan, was born into the Kudo clan, his father, Toratoyo KUDO serving the Takeda clan in Kai.
なお、武田二十四将の内藤昌豊（工藤祐長）の出自は工藤氏であり、実父の工藤虎豊は甲斐武田氏に仕えていた。