Sadamasa KATAGIRI (Sekishu) was the lord of the Yamato-Koizumi Domain worth 13,000 koku, and also held the post of Fushin-bugyo (shogunate official responsible for public works).
片桐貞昌（石州）は大和小泉藩1万3000石余りを知行する大名で、普請奉行をしていた。