Later Qin
Lü Long, however, instead of correcting Lü Zuan's rule (which was considered violent and arbitrary), continued the violence by slaughtering many strong clans within his state for the purpose of showing his authority, and the people were further alienated. After hearing this, in summer 401, the Later Qin emperor Yao Xing sent his uncle Yao Shuode (姚碩德) to launch a major attack on Later Liang. The Later Qin army quickly reached Guzang and put it under siege. Many of the non-natives in Guzang planned a rebellion to give the city to Later Qin, but were discovered, and Lü Long slaughtered them, but with Yao Shuode's pressure, Lü Chao suggested nominal submission to Later Qin, which Lü Long agreed with, sending his nephews and some 50 clans to the Later Qin capital Chang'an as hostages to guarantee his faithfulness. Per Yao Shuode's recommendation, Yao Xing created him the Duke of Jiankang, although Lü Long continued to internally use the title of Heavenly Prince. Yao Shuode then withdrew.