According to Harunori Hattori, the term, `unrelated branch family' is used for those people, and the depth of one's relationship with the Takeda family determines whether the term, `unrelated branch family' would have been used for them.
これらについて服部治則は「非血縁分家」と言う表現で武田家との関係の深度によるのではないかとしている。