It is said that the rank of Mahito is given to clans that are within the fifth generation from the Emperor Keitai and in this way clans close to the Imperial Family that are next to princes, princes who did not receive any proclamation to be an Imperial prince were specified; this method is common with the Asuka Kiyomihara Code (a collection of governing rules compiled and promulgated in 689 [late Asuka period]) in which the Code distinguished the official rank between princes, princes who did not receive any proclamation to be an imperial prince and nobles who served the Emperor.
真人は、継体天皇より数えて5世以内の世代の氏に与えられたといわれ、皇子・諸王につぐ皇親氏族を特定したので、飛鳥浄御原令で官位を皇子・諸王と貴族（諸臣）とで区別したことと共通する。