At first there was no such thing as Jito shiki (manager and lord of a private estate), but among shokan, Goji and hoji only the ones who established the relationship between lord and vassal with the bakufu were called jito.
当初は地頭職というものはなく、あくまで荘官や郷司、保司のうち幕府と主従関係を結んだものが地頭と呼ばれていた。