In ruling Shinano, Shingen had a policy of having his children adopted by the ancient clan to achieve conciliation, and Morinobu NISHINA, Katsuyori's younger paternal half-brother, similarly succeeded the Shinano Nishina clan, joining Shinzoku shu (a group which consisted of siblings and relatives).
信玄は信濃支配において旧族に子女を入嗣させて懐柔する政策を取っており、勝頼の異母弟である仁科盛信も同様に信濃仁科氏を継承して親族衆となっている。