The oniwaban was inherited by about a dozen descendent families of the kusurigomeyaku who were nominated as the first oniwanan by Yoshimune when they were transferred from the Kishu domain to the bakufu.
御庭番は吉宗のとき紀州藩から幕府に編入され初代の御庭番に任命された者たちの子孫十数家の世襲からなった。