There are some possibilities regarding the context of this incident, as one states this speech of Iemitsu was based on the advice of Masamune, or another suggests the cabinet members of bakufu asked Masamune in advance to reply to the words of Iemitsu on the spot.
この家光の発言は政宗の助言によるものだったとも、あるいは幕閣が政宗に予め根回して即座に返答するよう依頼したとも言われている。