The post was filled by a few bakufu hatamoto (direct retainers of the bakufu, which is a form of Japanese feudal government headed by a shogun) holding domains with more than 5,000 koku (of rice) yield each or fudai daimyo (hereditary vassal to the Tokugawa family) in the 10,000-goku class.
5000石以上の旗本または、1万石クラスの譜代大名から複数が任じられた。