In most cases, one was selected and appointed among Benkan (officials of the dajokan), and was called 'Tono Ben,' and the other was selected and appointed among Konoe no chujo (middle captain of the palace guards), and was called 'Tono Chujo.'
たいていは弁官から1名が補任されて「頭弁（とうのべん）」と呼ばれ、もう1名は近衛中将から補任され「頭中将（とうのちゅうじょう）」と呼ばれた。