Prince Lü of the First Rank, or simply Prince Lü, was the title of a princely peerage used in China during the Manchu-led Qing dynasty. As the Prince Lü peerage was not awarded "iron-cap" status, this meant that each successive bearer of the title would normallystart 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 Yuntao, the 12th son of the Kangxi Emperor. In 1722, Yuntao was made a junwang by his father for his military achievements. However, a year later, he was demoted two grades to beizi, but was restored as a junwang in 1730. In 1735, he was promoted to qinwang under the title "Prince Lü of the First Rank". The peerage was passed down over eight generations and held by eight persons.
Members of the Prince Lü peerage
Yuntao , the Kangxi Emperor's 12th son, initially a beizi, promoted to second-rank prince in 1722, demoted to beizi in 1723, further demoted to grace defender duke in 1724, restored as a second-rank prince in 1730, promoted to first-rank prince as Prince Lü of the First Rank in 1735, posthumously honoured as Prince Lü Yi of the First Rank
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** Yongcheng , the Qianlong Emperor's fourth son and Yuntao's adoptive grandson, held the title Prince Lü of the Second Rank from 1763 to 1777, posthumously honoured as Prince Lü Duan of the First Rank in 1799
*** Mianhui , Yongcheng's eldest son, held the title of a beile from 1777 to 1796, posthumously honoured as Prince Lü of the Second Rank
**** Yilun , Mianqin's son and Mianhui's adoptive son, held the title of a beizi from 1796 to 1809, promoted to beile in 1809, demoted to beizi in 1835, posthumously honoured as a beile in 1836
***** Zaigang, Yilun's ninth son, held the title of a feng'en zhenguo gong from 1865 to 1882
****** Pumao , Zaigang's third son and Zaifen's adoptive son, held the title of a grace bulwark duke from 1854 to 1882
******* Yuchang , Pumao's eldest son, held the title of a grace defender duke from 1882 to 1885, had no male heir
***** Zaifen , Yilun's tenth son, held the title of a beizi from 1836 to 1853, had no male heir
***** Zaihe, Yilun's 12th son, held the title of a grace general from 1856 to 1884
****** Puzhi , Zaihe's eldest son, held the title of a grace defender duke from 1885 to 1936
