Accordingly, persons from middle-ranking court families that served for the Imperial court or sekke (line of regent and adviser) as the officer of practical job, such as the Kanjuji line and Hino family of the Northern House of the FUJIWARA clan and the Takamune school of Taira clan, were successively appointed to To no ben, and became common practice later.
このため、朝廷や摂家政所において実務官僚を務めた勧修寺流・日野家などの藤原北家や高棟流平氏などの中級貴族の家系から輩出され、後にこれが通例となった。