However, many domain lords of the Date clan after the eighth, Narimura DATE, died before thirty, and a child adoption from other Date families continued to avoid the Mushi-kaieki (degrading of a social rank for the extinction of a family line), which led to the weak administration of the domain and finally the fall of the Date clan at the end of the Edo Period.
しかし、8代藩主伊達斉村以降は30歳に達せず早死にする藩主が多く、一門からの養子でかろうじて無嗣改易を免れる状況が続き、これによる藩政の沈滞化が幕末の失敗につながった物と考えられる。