When Shigetomi OHARA, the imperial messenger, traveled to Edo with Hisamitsu SHIMAZU, he visited the residence of the Satsuma Domain with Katsukiyo ITAKURA of the same post, accommodated, and assured Shigetomi to give the post of Shogun-kokenshoku (one of three major posts of the Edo bakufu) to Yoshinobu HITOTSUBASHI and the post of Tairo (chief minister) to Yoshinaga MATSUDAIRA.
勅旨大原重徳が島津久光とともに江戸に下向した際、同職の板倉勝静とともに薩摩藩邸に出向き、応接し、一橋慶喜を将軍後見職に、松平慶永を大老にする旨を重徳に確約している。