Families and vassals of the Date clan who remained in the Utsuro even after the war were reorganized by Tanemune's great-grandson Masamune DATE into a group of vassals in the Sendai Domain, supported by the strict relationship between lord and vassal.
乱後も洞に残った伊達氏の一門や家臣は曾孫の伊達政宗によって仙台藩家臣団として強い主従関係に基づく再編成を受ける事となった。