2021 年 113 巻 p. 49-62
Shinsho-taikōki, Taikō-shingenki, and Chōshū-shinsho-taikōki have been often confused with each other because they are regarded as the different titles of the same book. This paper distinguishes these three “jitsuroku” versions of Taikōki from each other by examining their interrelation. There are obviously textual differences between Shinsho-taikōki and Chōshū-shinsho-taikōki. Indeed, the former appeared earlier as it was already mentioned in a document written before the latter. The prefaces in several editions of Taikō-shingenki indicate that it was written after Shinsho-taikōki. There are many editions of Shinsho-taikōki and Taikō-shingenki, but they can be classified into two groups respectively. This classification can be also applied to their reworked versions Chōshū-shinsho-taikōki and Ehon-taikōki. It points to a possibility that there were originally two variants of Shinsho-taikōki and Taikō-shingenki.