But at least, it must have been established before the position of "honjo" (proprietor or guarantor of manor) was transferred around 1383 from the Ogimachisanjo family to the Sanjonishi family (relatives of the Ogimachisanjo family).
しかし少なくとも、南北朝時代(日本)末期の永徳3年（1383年）頃に本所が正親町三条家から同族の三条西家に譲渡される以前と考えられる。