<P> The Yongzheng Emperor died in 1735 . His 24 - year - old son , Prince Bao ( 寶 親王 ) , then became the Qianlong Emperor . Qianlong personally led military campaigns near Xinjiang and Mongolia , putting down revolts and uprisings in Sichuan and parts of southern China while expanding control over Tibet . </P>
who expanded the territory of china during the qing dynasty
Qianlong