Another theory says that after Hidetsugu's death by Hideyoshi, Yoshisato guarded and fostered a bereaved child of Shigekore KIMURA who was implicated in Hidetsugu and ordered to commit Seppuku (suicide by disembowelment) as his vassal.
秀吉による秀次の処断後、秀次付の家臣として連座切腹となった木村重茲の遺児を、義郷がを庇護・養育したという説も伝わっている。