Galdan Boshugtu Khan
Yinzhi participated in the Qing Empire's campaign against Galdan Boshugtu Khan of the Zunghar Khanate. In 1708, the Kangxi Emperor removed Yinreng from his position as Crown Prince. The emperor regarded Yinzhi highly so he placed Yinreng under Yinzhi's custody. Yinzhi had long harboured the intention of seizing the succession to the throne, so he used the opportunity to urge his father to execute Yinreng, but his father became extremely displeased. Later, Yinzhi's third brother, Yinzhi (胤祉), spread rumours accusing the First Prince of using sorcery to overthrow Yinreng from his Crown Prince position. The Kangxi Emperor believed the rumours and was so furious with Yinzhi (First Prince) that he called his son a "treacherous subject" and stripped him off his princely title and placed him under house arrest.