Prince Guo of the First Rank, or simply Prince Guo, was the title of a princely peerage used in China during the Manchu-led Qing dynasty. As the Prince Guo 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 Yunli, the 17th son of the Kangxi Emperor. In 1723, he was awarded the status of a junwang by his fourth brother, the Yongzheng Emperor, who succeeded their father. Yunli was known as "Prince Guo of the Second Rank". In 1728, he was promoted to a qinwang, hence he was known as "Prince Guo of the First Rank". The title was passed down over eight generations and was held by ten persons.
Members of the Prince Guo peerage
Yunli, the Kangxi Emperor's 17th son, was a second-rank prince from 1723 to 1728, promoted to qinwang in 1728, posthumously honoured as Prince Guo Yi of the First Rank
*Adoptive son: Hongyan, the Yongzheng Emperor's sixth son, adopted as Yunli's son & heir, initially a first-rank prince from 1738 to 1763, demoted to a beile in 1763 but promoted to a second-rank prince in 1765, posthumously honoured as Prince Guo Gong of the Second Rank
**1st son: Yongtu, held a second-rank prince title from 1765 to 1789, posthumously honoured as Prince Guo Jian of the Second Rank
***1st son: Miancong, Yongtu's eldest son, held the status of a beile from 1790 to 1791
***1st son: Mianlü, Yongcan's eldest son and Yongtu's adoptive son, held a beile title from 1791 to 1806, stripped of his title in 1806
****1st son: Yixiang, Mianlü's eldest son and Miancong's adoptive son, held the title of a grace defender duke from 1833 to 1872, awarded beizi status but not a beizi title in 1872, posthumously honoured as Grace Defender Duke Keshen
*****1st son: Zaikun, held the title of a bulwark general from 1857 to 1876, his title stripped in 1876
******Puzhen
*******1st son: Yuting, Puzhen's eldest son and Puyan's adoptive son, held the title of a grace bulwark duke from 1918 to 1945
*****3rd son: Zaizhuo, held the title of a grace bulwark duke from 1881 to 1907
******1st son: Puyan, Zaizhuo's eldest son, held the title of a grace bulwark duke from 1907 to 1918
***3rd son: Miantong, held a beizi title from 1806 to 1833
