After the end of the Heian period, as a rule only members of Sekke (line of regents and advisers) or the Seiga family (one of the highest court noble families in Japan at that time) were qualified to serve, but in the Edo period it seems that only former Sessho and Kanpaku were appointed to Daijodaijin.
平安時代末期以後、原則的に摂家・清華家の者のみが務める資格を持ったが、江戸時代には摂関経験者だけが太政大臣に任じられたようである。