In that sense, Tairo was rather a honorary post for Fudai daimyo (a daimyo who had belonged to the Tokugawa group before the battle of Sekigahara), but some at the post, such as Tadakiyo SAKAI and Naosuke II, concentrated power into their hands.
その意味では譜代大名の名誉職的な意味合いが強い職であったが、酒井忠清・井伊直弼のように自らに権力を集中させる者もいた。