ABSTRACT
The Teppōki was written before the Tanegashima kafu and it can therefore be surmised that the compiler of the first version of the Tanegashima kafu had the Teppōki at hand, especially since sections in both works are similar in much of their phraseology. However, when comparing the two works in their totality, it becomes obvious that Nanpo Bunshi and Kōzuma Takanao had their sources, among which one common source ought to have been a house chronicle of the Tanegashima family which had been kept from early times and had become rather detailed by the time of the 13th lord, Shigetoki, and the 14th lord, Tokitaka. As stated above, the Tanegashima kafu only begins to be detailed from the chapter on the eighth lord, Kiyotoki (1362-1427), while earlier lords are mostly only mentioned by name except for the first Taira ancestor, Nobumoto, who is given a full page at the beginning of the chronicle.1
