Prince Dun of the First Rank, or simply Prince Dun, was the title of a princely peerage used in China during the Manchu-led Qing dynasty. As the Prince Dun peerage was not awarded"iron-cap" status, this meant that each successive bearer of the title would normally start off with a title downgraded by one rank vis-à-vis that held by his predecessor. However, the title would generally not be downgraded to any lower than a feng'en fuguo gong except under special circumstances. The first bearer of the title was Miankai, the Jiaqing Emperor's third son, who was made "Prince Dun of the First Rank" in 1821. The title was passed down over four generations and held by five persons.
Members of the Prince Dun peerage
Miankai, the Jiaqing Emperor's third son, made a junwang in 1819, promoted to qinwang in 1821 under the title "Prince Dun of the First Rank", demoted to junwang in 1827 but restored as qinwang in 1828, demoted to junwang again in 1838, posthumously restored as qinwang in 1838 and honoured as Prince Dunke of the First Rank
* Yizuan, Miankai's eldest son, held the title of a buru bafen fuguo gong, posthumously honoured as a beile
* Yicong, the Daoguang Emperor's fifth son and Miankai's adopted son, initially a junwang, demoted to beile, then restored as a junwang in 1856 and promoted to qinwang in 1860, posthumously honoured as Prince Dunqin of the First Rank
** Zailian, Yicong's eldest son, initially a second classzhenguo jiangjun, promoted to buru bafen zhenguo gong in 1864, promoted to feng'en fuguo gong in 1871, made a beile and an actingjunwang in 1889, stripped of his title in 1900
*** Puxiu, Zailian's second son and Zaijin's adopted son, held the title of a second classzhenguo jiangjun from 1896 to 1915
** Zaiyi, Yicong's fifth son, adopted by Yizhi into the Prince Rui peerage, held the title "Prince Duan of the Second Rank" from 1894 to 1900
*** Puzhuan, Zaiyi's eldest son, held the title of a first classzhenguo jiangjun from 1894 to 1920
**** Yu'an, Puzhuan's son
*** Pujun, Zaiyi's second son, held the title of a buru bafen fuguo gong from 1901 to 1942
**** Yuwei, Pujun's son
** Zailan, Yicong's third son, initially a third classfuguo jiangjun, promoted to second class zhenguo jiangjun in 1884, promoted to buru bafen fuguo gong in 1889, stripped of his title in 1900, posthumously restored as a buru bafen fuguo gong
*** Puzhuo, Zailan's son
**** Yujun, Puzhuo's son
** Zaiying, Yicong's fourth son, initially a second class zhenguo jiangjun, made an acting buru bafen fuguo gong in 1894, promoted to beile in 1900, posthumously honoured as Gongke Beile
*** Puxian, Zaiying's fifth son, held the title of a beizi from 1930
