In the seating hierarchy within Edo-jo Castle, any Shodaibu of Junior Fifth Rank, Lower Grade whose kokudaka (the assessed value of their landholdings in rice), rounded down to the nearest 10,000 koku, was equal to that of a joshu (castle lord) daimyo, was seated one notch down from such joshu daimyo (for example, the Todo family, a Joshukaku with 53,000 koku, was seated one notch below the Mizoguchi family, a joshu with 50,000 koku).
従五位下諸大夫では、江戸城中の序列において、万石以下端数を切捨てた石高で同高の城主大名の次席に位置した（「順席」における例.5万3,000石城主格藤堂家は5万石城主溝口家の次席であった）をうける大名をいった。