抄録
In this essay, the author analyses the content of an informal, private communication (origami-form) from the Kujo Family document collection, addressed to Kanezane from Yoritomo. Despite the fact that the latter part of the communication and, therefore, the date are missing, from its content it can be assumed that Yoritomo wrote it sometime in the fifth month of Bunji 2 (1186). While the communication is Yoritomo's response to a request by Kanezane for an opinion concerning certain rather public matters of political organization, it must be stressed that diplomatically this exchange was strictly of a private nature. Moreover probably because of the letter's personal form, its historical significance has been heretofore overlooked. However, as the author observes, from this communication, new facts have surfaced which help to clarify the true nature of the political relationships between Yoritomo, Kanezane and Go-Shirakawa-In. Specifically the author observes : (1)that the kiroku-jo established in Bunji 3 (1187), which up till now was thought to be founded by Yoritomo, was clearly Kanezane's idea. (2)that the political dealings between the Bunji era "triumvirate" can be summarized as follows : A)Kanezane sought Yoritomo's support and used that support as a background for furthering his personal interests at court. B)Go-Shirakawa-In, while continuously applying political pressure to Kanezane, took a prudent attitude in dealing with Yoritomo, and adeptly managed to avoid acting on any of Yoritomo's demands. C)Yoritomo, while promising support to Kanezane, was by no means able to dictate policy to Go-Shirakawa-In.
