It is said that when his lord, Nobuyuki, went to Edo to perform the duty of Sankinkotai (a system under which feudal lords in the Edo period were required to spend every other year in residence in Edo), Tadashige stayed at Matsushiro-jo Castle to take charge of the domain administration.
主君・信之が参勤交代で江戸に向かった後には藩政を司るため松代城に残っていたとされる。