At the time when the peerage system was inaugurated in 1884, peerage was newly conferred on only descendants of Toshimichi OKUBO and Takayoshi KIDO (descendants of Takamori SAIGO were excluded due to Seinan War), and later thirteen families became marquises, among which five families were promoted to dukes.
-明治17年（1884年）の華族制度発足の時点では、新華族は大久保利通と木戸孝允の子孫が叙せられたのみであったが（西郷隆盛の子孫は西南戦争のために除外）、後に13家が侯爵となり、そのうち5家はさらに公爵にのぼった。