姚苌
In 385, an incident involving the city of Xinping (新平, in modern Xianyang, Shaanxi) helped to further establish Yao Chang's reputation as wily and treacherous. The people of Xinping had fought extremely hard to preserve their city for Former Qin when Yao Chang first started sieging the city in late 384. Eventually, when Xinping ran out of food supplies and military equipment, Yao Chang assured the governor of Xinping commandery, Gou Fu (苟輔), that if he yielded the city, he would be allowed to safely lead the people of Xinping to Chang'an. Gou believed him, but as soon as he exited the city with the 5,000 remaining people, Yao Chang surrounded them with his troops and slaughtered them all, with only a single person who escaped.