| In Iesada TOKUGAWA's reign, the tour had been postponed until 1857 due to the arrival of the Black Ships from the US and outbreak of a natural disaster but eventually not conducted due to aggravation of Iesada's illness (and his death in the following year). |
だが、徳川家定の時には黒船来航や災害などを理由に安政4年（1857年）まで延期されたものの、家定の病状悪化（翌年死去）によって派遣されなかった。 |