Titsingh, p. 411; Ponsonby-Fane, p. 317; compare with April 22, 1863 (Bunkyū 3, 5th day of the 3rd month): Shogun Tokugawa Iemochi came to the capital and had an audience. This was the first time since the visit of Iemitsu in Kan'ei 11, 230 years before, that a shogun had visited Heian-kyō. In Bunkyō 3, Iemochi was summoned by the Emperor Kōmei; and when he traveled from Edo to the capital, the shogun had 3,000 retainers as escort. (Ponsonby-Fane, p. 325.)
Titsingh, p. 412; Varley, H. Paul. (1980). Jinnō Shōtōki, p. 44; a distinct act of senso is unrecognized prior to Emperor Tenji; and all sovereigns except Jitō, Yōzei, Go-Toba, and Fushimi have senso and sokui in the same year until the reign of Go-Murakami.