In addition, it is written in more reliable material "takumi-no-kami oazukari ikken" (Record of Naganori ASANO in custody) that Naganori left his will to his sobayonin (lord chamberlain), Takafusa KATAOKA and Masahisa ISOGAI.
なお比較的資料の価値が高い『内匠頭御預かり一件』の方には長矩の側用人片岡高房と礒貝正久宛てに長矩が遺言を残したことが記されている。