Abstract
The "Gofuchinin-Toryo" was the top class of the chief carpenters in the public office of Nakai. This position was passing by inheritance in the Benkei, Ikegami and Yagura families, living in kyoto. This paper consists of the following chapters. 1) Introduction. 2) The men of the three families from the Keichyo to the Kanei period. 3) The formation of the "Kyo sannin" 4) The formation of the "Kyo-toryo-sannin" 5) The formation of the top class of the chief-carpenters 6) The formation of the "Gofuchinin Toryo" 7) Conclusion
