Prince Zhuang of the First Rank, or simply Prince Zhuang, was the title of a princely peerage used in China during the Manchu-led Qing dynasty. It was also one of the 12 "iron-cap" princely peerages in the Qing dynasty, which meant that the title could be passed down without being downgraded. The first bearer of the title was Šose, the fifth son of Hong Taiji, the second ruler of the Qing dynasty. He was awarded the title Prince Chengze of the First Rank in 1651 by his father. The peerage was renamed to "Prince Zhuang of the First Rank" when it was passed down to Šose's eldest son, Boguoduo. In 1723, by decree of the Yongzheng Emperor, the emperor's 16th brother, Yunlu, inherited the Prince Zhuang peerage from Boguoduo because Boguoduo had no son to succeed him. During the reign of the Qianlong Emperor, the peerage was granted"iron-cap" status, which meant that the subsequent bearers of the title would start as a qinwang by default. The peerage was passed down over nine generations and held by 12 persons. The title "Prince Zhuang of the First Rank" was also awarded in 1653 by the Shunzhi Emperor as a posthumous title to Šurhaci, a younger brother of Nurhaci, the founder of the Qing dynasty.
Members of the Prince Zhuang / Prince Chengze peerage
Šose, Hong Taiji's fifth son, held the title Prince Chengze of the Second Rank from 1644 to 1651, promoted to Prince Chengze of the First Rank in 1651, posthumously honoured as Prince Chengzeyu of the First Rank
* Boguoduo, Šose's eldest son, held the title Prince Zhuang of the First Rank from 1655 to 1723, posthumously honoured as Prince Zhuangjing of the First Rank
** Yunlu, the Kangxi Emperor's 16th son and Boguoduo's adoptive son, held the title Prince Zhuang of the First Rank from 1723 to 1767, posthumously honoured as Prince Zhuangke of the First Rank
*** Hongpu, Yunlu's second son, posthumously honoured as Prince Zhuang of the First Rank
**** Yongchang, Hongpu's son, held the title Prince Zhuang of the First Rank from 1767 to 1788, posthumously honoured as Prince Zhuangshen of the First Rank
**** Yongke, Hongpu's son, held the title of a third classfengguo jiangjun
***** Mianke, Yongke's son and Yongchang's adoptive son, held the title Prince Zhuang of the First Rank from 1788 to 1826, posthumously honoured as Prince Zhuangxiang of the First Rank
****** Yimai, Mianke's 13th son, held the title Prince Zhuang of the First Rank from 1826 to 1838, stripped of his title in 1838
*** Hongrong, Yunlu's son, held the title of a feng'en fuguo gong
**** Yongfan, Hongrong's son, held the title of a fuguo jiangjun
***** Mianhu, Yongfan's eldest son, held the title Prince Zhuang of the First Rank from 1838 to 1842, posthumously honoured as Prince Zhuangqin of the First Rank
***** Mianhua, Yongfan's second son, held the title Prince Zhuang of the First Rank from 1842 to 1845, posthumously honoured as Prince Zhuangzhi of the First Rank
****** Yiren, Mianhua's eldest son, held the title Prince Zhuang of the First Rank from 1846 to 1874, posthumously honoured as Prince Zhuanghou of the First Rank
******* Zaixun, Yiren's second son, held the title Prince Zhuang of the First Rank from 1875 to 1901, stripped of his title in 1901
******* Zaigong, Yiren's fourth son, held the title Prince Zhuang of the First Rank from 1902 to 1915, posthumously honoured as Prince Zhuanggong of the First Rank
******** Puxu, Zaigong's son, held the title Prince Zhuang of the First Rank from 1916 to 1933